BMW Intake Parts for BMW 3 Series E46 (1999-2005)

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One thing drivers and cars have in common is the need for air. Induction systems provide a third of the critical necessities for engines to run, so giving your BMW the best way to breathe is paramount in engine performance. If you need to replace your filter, recharge your reusable pod filter, or upgrade your intake, turbos, or intercooler parts, everything can be found below. We have OEM replacements as well as aftermarket performance upgrades to keep your BMW pristine, powerful, and functioning at peak efficiency.

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Karbonius Composites - Corporate Logo
T#:7164824
Part#: E46AD03
Ships in 8 Business Days
$ 2,420.00 USD
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$ 2,420.00 USD
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Intake system made 100% in prepreg carbon fiber in autoclave
Dinan Performance Replacement Air Filter For Cold Air Intake/Air Mass...
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:398076
Part#: D401-0440
Ships in 6 Business Days
Sale - Save 11% $ 62.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 56.12 USD
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Sale - Save 11%
$ 62.99

This product was last offered at the strikethrough price on
09-28-2026

$ 56.12 USD
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Replacement filter for your high flow intake system.

For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. Each sway bar is worth 1 point towards your Dinan badge.

 

Fits the following BMW's:2001-2006 E46 BMW M3

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K&N - Corporate Logo
T#:367488
Part#: 57-1001
EO#: D-269-31
Ships on Oct 22, 2026
$ 367.99 USD
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$ 367.99 USD
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This K&N performance cold air intake kit eliminates the restrictive air box in favor of a high flowing intake system that allows for greater power all throughout the power band. Every K&N intake features a premium air filter that is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase!

K&N's air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

  • Covered by the K&N Million Mile Limited Warranty
  • Washable and reusable
  • Will not void vehicle warranty
  • 50 state legal
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Universal Throttle Body Coupler - 45 Degree 2.5" (63.50mm)
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:382969
Part#: 003402ECS03A-16
In Stock
Sale - Save 25% $ 39.99

This product was last offered at the strikethrough price on
06-13-2026

$ 29.99 USD
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Sale - Save 25%
$ 39.99

This product was last offered at the strikethrough price on
06-13-2026

$ 29.99 USD
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Elevate your BMW project with ECS Tuning silicone couplers and elbows, providing a high-quality, precision-engineered solution for various applications. Whether you're installing an intercooler, fabricating a custom intake system, or pursuing other automotive projects, ECS Tuning delivers reliable performance and durability. Trust ECS Tuning to meet your needs and enhance your BMW project.

  • High-quality silicone couplers and elbows for BMW projects
  • Precision-engineered for reliability and performance
  • Versatile solution for intercooler installations, custom intake systems, and more
  • Ensures durability and longevity for your automotive projects
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BMC - Corporate Logo
T#:590913
Part#: WA250-500
Ships in 9 Business Days
$ 24.99 USD
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Karbonius Composites - Corporate Logo
T#:35727834
Part#: E46AD04-CFM-2
Ships in 3 Business Days
$ 809.00 USD
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$ 809.00 USD
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Karbonius E46 M3 CSL (S54) Carbon Snorkel - 2x2 Weave and Matte Finish

Karbonius E46 M3 CSL (S54) Carbon Snorkel - 2x2 Weave and Matte Finish is the ultimate performance and style upgrade for BMW E46 M3 enthusiasts. This high-quality carbon fiber snorkel is designed to replicate the renowned CSL design, enhancing airflow efficiency and engine performance while providing a sleek, race-inspired aesthetic. Made with a premium 2x2 carbon fiber weave and finished with a durable matte coating, it offers the perfect balance of form and function. Available through Turner Motorsport, this component ensures authenticity and precision engineering for the discerning BMW owner.

Key Benefits

  • Precision-crafted for seamless fitment on BMW E46 M3 models
  • Improves airflow for optimized S54 engine performance
  • Constructed with a 2x2 carbon fiber weave for superior strength and lightweight durability
  • Matte finish adds a modern, sporty aesthetic to the engine bay
  • Inspired by the legendary CSL design for an authentic motorsport upgrade
  • Available exclusively from trusted BMW performance specialists, Turner Motorsport

Elevate your E46 M3’s performance and style with the Karbonius E46 M3 CSL (S54) Carbon Snorkel - 2x2 Weave and Matte Finish, a must-have for enthusiasts aiming to achieve the ultimate driving experience.

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BMC - Corporate Logo
T#:397411
Part#: FB132/01
Back Ordered
$ 84.99 USD
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$ 84.99 USD
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Looking to upgrade your air filter for increased flow and performance? BMC filter allow significantly higher air flow and are perfectly molded in one piece to fit exactly the same as your stock air filter. These filters are constructed from multi-layerd cotton gauze that is pre-oiled and can be cleaned and regenerated using the BMC regeneration kit.
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Karbonius Composites - Corporate Logo
T#:39329313
Part#: E46AD02-CFM-2
Ships on Dec 17, 2026
$ 2,449.00 USD
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$ 2,449.00 USD
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The intake generates what is probably one of the best noises of any sports car. The Karbonius CSL Style Airbox weighs in at a scant 1.7kg. It is made with 100% prepreg carbon fiber and baked at 125º in an autoclave at their facility in Spain under ISO 9001 Management Quality System rules by qualified staff.
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Dinan Replacement Air Filter Sock - Priced Each
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:11268530
Part#: D401-0111
Ships on Oct 30, 2026
Sale - Save 11% $ 42.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.33 USD
Free Shipping on orders $49 and up
Sale - Save 11%
$ 42.99

This product was last offered at the strikethrough price on
09-29-2026

$ 38.33 USD
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Replacement air filter protection sock.
AFE - Corporate Logo
T#:1359
Part#: 54-10451
EO#: D-550-38
In Stock
$ 435.00 USD
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$ 435.00 USD
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Maximum Flow Pro5R Filter

This intake kit replaces your restrictive factory air box. It features a 3-angle aluminum velocity stack adapter, 1.6mm powder-coated steel heat shield, trim sealed to seal out hot engine air, and a custom aFe brand cotton filter.

This version uses aFe's highest flowing filter media, which uses a lightly oil gauze to filter out dirt and particulates, while allowing more air to flow to the intake. For the best flowing filter, with the best performance gain, we always recommend this standard aFe filter media (often called "Pro5R ", which has a blue pre-oiled filter media). We also carry this filter in the "ProDry" grey filter media, which is oil-free for only slightly less performance and no maintenance.

By removing your stock intake air box, you are removing the most restrictive portion of your intake system, increasing both horse power and torque, improving acceleration as well as throttle response.

aFe has reported gains as high as 20 hp and 27 lb/ft torque on the 330i

For the maximum benefit in performance, we recommend upgrading your engine software with the Shark Injector (Click here for more info on the Shark Injector performance software.)

This aFe intake fits the following BMWs:
2003-2006 E46 3 series : 325i 325ci 325xi + Wagon & Convertible models with M56 engine
2001-2006 E46 3 series : 330i 330ci 330xi + Convertible
2004-2006 E83 X3 : X3 3.0i

Clickhere for installation instructions.

Want an extra layer of defense? Add a pre-filter to prevent water, mud and sand from congesting your air intake system. This simple upgrade slides over the aFe filter of this intake kit, much like a sock, giving you an extra layer of defense, and extending the cleaning interval of your aFe intake's filter element. Best of all, using the Pre-Filter does not significantly diminish your air filter s performance the smooth rush of oxygen keeps rolling right into your engine. To add the pre-filter, just select the option for the drop-down option below.
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Eventuri - Corporate Logo
T#:640792
Part#: EVE-661-G2-FTR
Ships in 3 Business Days
$ 95.00 USD
Free Shipping on orders $49 and up
Replacement filter for the Eventuri E46 M3 Carbon intake system, comes ready to install.


Forge - Corporate Logo
T#:28271173
Part#: FMDV004S
Back Ordered
Sale - Save 12% $ 23.99

This product was last offered at the strikethrough price on
09-18-2026

$ 21.18 USD
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Sale - Save 12%
$ 23.99

This product was last offered at the strikethrough price on
09-18-2026

$ 21.18 USD
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Silicone Coupler - Straight 3 5/8" (92mm)
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:377483
Part#: 003402ECS01A-07
In Stock
Sale - Save 40% $ 39.99

This product was last offered at the strikethrough price on
05-02-2026

$ 23.99 USD
Free Shipping on orders $49 and up
Sale - Save 40%
$ 39.99

This product was last offered at the strikethrough price on
05-02-2026

$ 23.99 USD
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ECS Silicone Coupler

Upgrade your BMW with the ECS Silicone Coupler. This straight 3 5/8" ID (92mm) x 3" L coupler is designed to enhance your vehicle's performance and durability. Crafted from high-quality silicone, it ensures long-lasting reliability and superior performance.

  • Enhances vehicle performance
  • Durable construction for long-lasting reliability
  • Specifically designed for BMW vehicles
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BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm)
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:376708
Part#: 003402ECS01A-03
In Stock
Sale - Save 25% $ 30.99

This product was last offered at the strikethrough price on
06-13-2026

$ 23.24 USD
Free Shipping on orders $49 and up
Sale - Save 25%
$ 30.99

This product was last offered at the strikethrough price on
06-13-2026

$ 23.24 USD
Free Shipping on orders $49 and up

Upgrade your BMW or MINI with the BMW & MINI Silicone Coupler - Straight 2.38" (60.33mm). This high-quality silicone coupler is designed to provide a secure and leak-free connection for your vehicle's intake or cooling system. Engineered for durability and flexibility, it ensures optimal performance under various conditions. With its straight design and precise dimensions, this silicone coupler offers easy installation and a perfect fit for your BMW or MINI.

  • Provides a secure and leak-free connection
  • Engineered for durability and flexibility
  • Straight design for easy installation
  • Perfect fit for BMW and MINI vehicles
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Mishimoto Air Intake Kit - E46 - M52 / M54
CARB certified for sale in all 50 states
Mishimoto - Corporate Logo
T#:383906
Part#: MMAIE4699BK
EO#: D-759-1
In Stock at Vendor
$ 282.99 USD
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$ 282.99 USD
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The Mishimoto E46 airbox is meticulously crafted from durable, powder-coated steel to ensure long-lasting performance. To safeguard against vibrations, damage, and the intrusion of hot engine air into the intake, we've equipped it with weather stripping along the edges. The included coupler is a robust four-ply unit specifically designed for this kit. The air filter featured here is the Mishimoto Oiled Air Filter, known for its serviceability and the potential for a lifetime of use when properly cleaned and maintained. Mishimoto has also engineered an internal CNC-machined connector to facilitate a seamless connection between the silicone intake hose and their air filter.

Please take note of the following warning: Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) may apply to this product. Proposition 65 is a California law that pertains to all companies selling products in California. It mandates that any listed chemical present above very low levels, known to cause cancer, birth defects, or other reproductive harm, must be disclosed. For additional information regarding California Prop 65 warnings, please visit www.P65Warnings.ca.gov.

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AFE - Corporate Logo
T#:557748
Part#: 54-10468-R
Ships in 3 Business Days
$ 134.00 USD
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$ 134.00 USD
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The Dynamic Air Scoop (D.A.S.) from aFe is a very simple bolt-on product that increases airflow and velocity into the air intake through the factory kidney bean grille. This scoop is constructed of lightweight powder-coated aluminum for reduced weight, greater strength and unique styling. This scoop is a perfect addition to a cold air intake installation. Lower Intake Air Temperature: Dynamic air scoops lower intake air temperatures by forcing more cool air from the front grille into the intake snorkel. Lightweight Aluminum D.A.S Scoop: This Dynamic Air Scoop is constructed with lightweight aluminum for strength and finished off by a powder-coated finish. Hassle-Free Installation: All necessary hardware is included for an easy, hassle-free installation. Fits: 1999-2006 BMW 323i/ci (E46) L6-2.5L M52 1999-2006 BMW 328i/ci (E46) L6-2.8L M52 1999-2006 BMW 330i/ci/xi (E46) L6-3.0L M54 2001-2006 BMW 325i/ci/xi (E46) L6-2.5L M54 2001-2007 BMW M3 (E46) L6-3.0L S54 Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
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Mishimoto - Corporate Logo
T#:641888
Part#: MMAI-E46-01BK
In Stock at Vendor
$ 321.95 USD
$ 321.95 USD
Let your car breathe with this bolt-on intake kit - +7HP/+9WHP without a tune! The Mishimoto E46 airbox is constructed of powder-coated steel, and we line the edges with weather stripping to prevent any vibrations, damage, or hot engine air from entering the intake . The coupler is a four-ply unit designed specifically for this kit. The air filter shown above is the Mishimoto Oiled Air Filter. These filters are completely serviceable and can provide a lifetime of service if appropriately cleaned and maintained. Mishimoto also designed an internal CNC-machined connector that will allow the silicone intake hose to mate properly with their air filter. WARNING! Prop 65 may apply to this product. Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1968) is a California law that applies to call companies selling products in California. Prop 65 requires any listed chemical present above very low levels that are known to cause cancer, birth defects, or other reproductive harm. For more information about California Prop 65 warning see: www.P65Warnings.ca.gov.
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AFE - Corporate Logo
T#:21867192
Part#: 54-10468-N
Ships in 3 Business Days
$ 134.00 USD
Free Shipping on orders $49 and up
The Dynamic Air Scoop (D.A.S.) from aFe is a very simple bolt-on product that increases airflow and velocity into the air intake through the factory kidney bean grille. This scoop is constructed of lightweight powder-coated aluminum for reduced weight, greater strength and unique styling. This scoop is a perfect addition to a cold air intake installation. Lower Intake Air Temperature: Dynamic air scoops lower intake air temperatures by forcing more cool air from the front grille into the intake snorkel. Lightweight Aluminum D.A.S Scoop: This Dynamic Air Scoop is constructed with lightweight aluminum for strength and finished off by a powder-coated finish. Hassle-Free Installation: All necessary hardware is included for an easy, hassle-free installation. Fits: 1999-2006 BMW 323i/ci (E46) L6-2.5L M52 1999-2006 BMW 328i/ci (E46) L6-2.8L M52 1999-2006 BMW 330i/ci/xi (E46) L6-3.0L M54 2001-2006 BMW 325i/ci/xi (E46) L6-2.5L M54 2001-2007 BMW M3 (E46) L6-3.0L S54 Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
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AFE - Corporate Logo
T#:3894
Part#: 28-10093
Ships in 3 Business Days
21% off MSRP $ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.00 USD
Free Shipping
21% off MSRP
$ 47.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 38.00 USD
Free Shipping
Prevent water, mud and sand from congesting your air intake system with the aFe Pre-Filter. This aFe Pre-Filter slips right over your performance air filter, adding an extra layer of defense against moisture, grime and other roadway filth, extending the cleaning interval of your aFe filter. Water is repelled by the proprietary hydrophobic treatment to the Pre-Filter�s polyester fabric, and the pre-filters uniformly spaced micron holes prevent debris .005� or larger from passing through. Best of all, using the Pre-Filter does not significantly diminish your air filter�s performance�the smooth rush of oxygen keeps rolling right into your engine. Visually, the Pre-Filter blends in seamlessly with your aFe Cold Air Intake System and other components under your hood.

This particular pre-filter is custom sized to fit the following aFe Intake Kits:
54-10171 (E36 6 Cylinder)
54-10441 (E46 323i/325i/328i/Ci 99-2003)
54-10451 (E46 330i/Ci (all) & 325i/Ci 2003-2005)
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Injen - Corporate Logo
T#:558065
Part#: SP1111WB
In Stock at Vendor
$ 348.99 USD
Free Shipping
$ 348.99 USD
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This is a short ram intake and filter kit that will go in place of the restrictive and unattractive factory airbox. Feel a dramatic boost to throttle response and build boost faster by eliminating restrictions and widening the intake track. The Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A/F Ratio. The Injen SP Series Intake System does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. The Injen SP Series Intake is The World's First Tuned Intake System.

In 1999 Injen designed the first urethane filter with a built-in velocity stack for added performance. The Injen Technology Research and Development Team calculates each filters mesh and pleat count for each specific application during the development stages. Today the state-of-the-art Ea nano-fiber Injen/AMSOIL performance dry filter provides reliable performance and requires NO OIL. Both Injen Air Filters allow cleaning and durability for 1000's of miles to come.

Features:
Wrinkle Black finish
+11hp/10ftlbs.
Heat shield

Kit Includes:
Heat shield
SuperNano Dry Web Dry Filter
Mounting hardware
Instructions

This part fits the following BMWs:
2001-2006 E46 330i 330Ci

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aFe Throttle Body Spacer - E46 325i
CARB certified for sale in all 50 states
AFE - Corporate Logo
T#:4527
Part#: 46-31008
EO#: D-550-11
Ships in 3 Business Days
$ 139.00 USD
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$ 139.00 USD
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The Silver Bullet throttle body spacer creates turbulence in the air flow just prior to entry into the engine increasing horsepower, torque and improving throttle response. In recent dyno testing by aFe, this throttle body spacer produced +10hp and +14lbs. x ft. torque . The Silver Bullet throttle body spacers are constructed out of durable T-6061 billet aluminum and using a unique serrated/helix entry to create turbulence at the manifold while eliminating the annoying whistle found in other helix only throttle spacers. Great power per dollar performance.

This item fits the following BMWs:
2001-2005 E46 BMW 325i 325ci 325xi
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K&N Performace Typhoon Cold Air Intake System - E46 M3 S54
CARB certified for sale in all 50 states
K&N - Corporate Logo
T#:3973
Part#: 69-2001TWK
EO#: D-269-32
Ships in 4 Business Days
$ 419.99 USD
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$ 419.99 USD
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Built for performance and show, the Typhoon Air Intake System is a free-flowing mandrel-bent aluminum tube induction system designed to fit many sport compact performance vehicles. Each kit is proven on a rear-wheel dynamometer to increase horsepower and torque. Typhoon intakes come in one of three designs; cold air intakes (CA), short ram intakes (SR), or complete cold air (CCA) intakes which can be configured as either a cold air intake or a short ram intake. Available in an assortment of powder coated colors and polished aluminum, these kits are sure to please in every way. They come with an oversized High-Flow conical air filter designed to provide increased surface area and dust capacity. This extra surface area provides even more airflow at lower restriction than a standard K&N O/E replacement filter that is limited to the size of the factory air box. The oversize air filter also captures more dirt increasing the service life before a cleaning is required (up to 100,000 miles).

69-2001TWK Product Specifications

Product Style: 69 Series Typhoon Kits
Estimated Horsepower Gain: 8.9 HP @ 6000 RPM
Color: Black
Replacement Filter: RP-5113
CARB Exempt: No
System Type: Short-ram intake system
Weight: 8.7 lb (3.9 kg)
Product Box Length: 19.3 in (490 mm)
Product Box Width: 14.5 in (368 mm)
Product Box Height: 8.4 in (213 mm)

Clickhere for installation instructions.

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Dinan Cold Air Intake System - E46 - 325i/ic
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
CARB certified for sale in all 50 states
Dinan - Corporate Logo
T#:5844243
Part#: D760-0007
EO#: D-176-32
Ships in 5 Business Days
Sale - Save 10% $ 371.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 334.76 USD
Free Shipping
Sale - Save 10%
$ 371.99

This product was last offered at the strikethrough price on
09-28-2026

$ 334.76 USD
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Features: More Power: + 9 HP @ 6500 RPM, + 8 LB-FT @ 6500 RPM (coupled w/ engine software) Sealed system for maximum insulation from power robbing heat Additional secondary inlet for additional air flow Enlarged filter element for optimum flow Dinan's High Flow Intake System consists of an injection-molded replacement lid for the stock airbox designed to increase overall volume and accommodate a high flow filter element for optimum intake air-flow. The lid is manufactured using a special composite material, chosen specifically for its ability to resist power robbing under-hood heat. The lid also incorporates an O-ring, completely sealing the air box for maximum pressurization and further insulation against heat-soaking, optimizing performance under varying driving conditions. The System also includes a secondary intake duct that scoops up additional cool, oxygen-rich air via the factory brake cooling duct, further improving performance as road speed increases.
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Injen - Corporate Logo
T#:558066
Part#: SP1110WB
In Stock at Vendor
$ 348.99 USD
Free Shipping
$ 348.99 USD
Free Shipping

This is a short ram intake and filter kit that will go in place of the restrictive and unattractive factory airbox. Feel a dramatic boost to throttle response and build boost faster by eliminating restrictions and widening the intake track. The Injen SP Series Intake Systems Feature the Patent Pending MR Technology Process for Optimal Gains and a Safe A/F Ratio. The Injen SP Series Intake System does not limit itself to just a Cold Air System or Short Ram System. The MR Technology process has its effects on both types. The Injen SP Series Intake is The World's First Tuned Intake System.

In 1999 Injen designed the first urethane filter with a built-in velocity stack for added performance. The Injen Technology Research and Development Team calculates each filters mesh and pleat count for each specific application during the development stages. Today the state-of-the-art Ea nano-fiber Injen/AMSOIL performance dry filter provides reliable performance and requires NO OIL. Both Injen Air Filters allow cleaning and durability for 1000's of miles to come.

Features:
Wrinkle Black finish
+11hp/10ftlbs.
Heat shield

Kit Includes:
Heat shield
SuperNano Dry Web Dry Filter
Mounting hardware
Instructions

This part fits the following BMWs:
2000-2006 E46 323i 323Ci 325i 325Ci 328I 

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AEM Cold Air Intake System - E46 325Ci, 325i, 325xi, 328Ci, 328i, 328...
For 1999-2000 models years only For 2001-2003 model years only
AEM - Corporate Logo
T#:597102
Part#: AEM-21-672P
EO#: D-670-15
Ships in 4 Business Days
$ 429.99 USD
$ 429.99 USD
A cold air intake provides the engine with a cooler charge of air by routing the intake piping further away from the engine.
AFE - Corporate Logo
T#:557749
Part#: 54-10468-L
Ships in 3 Business Days
$ 134.00 USD
Free Shipping
$ 134.00 USD
Free Shipping
The Dynamic Air Scoop (D.A.S.) from aFe is a very simple bolt-on product that increases airflow and velocity into the air intake through the factory kidney bean grille. This scoop is constructed of lightweight powder-coated aluminum for reduced weight, greater strength and unique styling. This scoop is a perfect addition to a cold air intake installation. Lower Intake Air Temperature: Dynamic air scoops lower intake air temperatures by forcing more cool air from the front grille into the intake snorkel. Lightweight Aluminum D.A.S Scoop: This Dynamic Air Scoop is constructed with lightweight aluminum for strength and finished off by a powder-coated finish. Hassle-Free Installation: All necessary hardware is included for an easy, hassle-free installation. Fits: 1999-2006 BMW 323i/ci (E46) L6-2.5L M52 1999-2006 BMW 328i/ci (E46) L6-2.8L M52 1999-2006 BMW 330i/ci/xi (E46) L6-3.0L M54 2001-2006 BMW 325i/ci/xi (E46) L6-2.5L M54 2001-2007 BMW M3 (E46) L6-3.0L S54 Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
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AFE - Corporate Logo
T#:1595
Part#: 54-10468
In Stock at Vendor
$ 112.00 USD
Free Shipping
$ 112.00 USD
Free Shipping
The Dynamic Air Scoop (D.A.S.) from aFe is a very simple bolt-on product that increases airflow and velocity into the air intake through the factory kidney bean grille. This scoop is constructed of lightweight powder-coated aluminum for reduced weight, greater strength and unique styling. This scoop is a perfect addition to a cold air intake installation. Lower Intake Air Temperature: Dynamic air scoops lower intake air temperatures by forcing more cool air from the front grille into the intake snorkel. Lightweight Aluminum D.A.S Scoop: This Dynamic Air Scoop is constructed with lightweight aluminum for strength and finished off by a powder-coated finish. Hassle-Free Installation: All necessary hardware is included for an easy, hassle-free installation. Fits: 1999-2006 BMW 323i/ci (E46) L6-2.5L M52 1999-2006 BMW 328i/ci (E46) L6-2.8L M52 1999-2006 BMW 330i/ci/xi (E46) L6-3.0L M54 2001-2006 BMW 325i/ci/xi (E46) L6-2.5L M54 2001-2007 BMW M3 (E46) L6-3.0L S54 Emissions Disclaimer: This product is not currently CARB exempt and is not available for purchase in California or for use on any vehicle registered with the California Department of Motor Vehicles.
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Injen - Corporate Logo
T#:558074
Part#: RD1110P
EO#: D-476-4
In Stock at Vendor
$ 472.99 USD
Free Shipping
$ 472.99 USD
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This is a short ram intake and filter kit that will go in place of the restrictive and unattractive factory airbox. Feel a dramatic boost to throttle response and build boost faster by eliminating restrictions and widening the intake track. The Injen RD series is a cold air intake system for the enthusiast craving mid-range power. The intake tube is strategically placed behind the front bumper to acquire colder denser air. Although most of the Injen RD series are a one-piece design several are two-piece designs due to the mass air flow meters. Every Injen RD system is certified or pending by the California Air Resource Board and backed by Injen Technology's limited lifetime warranty.

In 1999 Injen designed the first urethane filter with a built-in velocity stack for added performance. The Injen Technology Research and Development Team calculates each filters mesh and pleat count for each specific application during the development stages. Today the state-of-the-art Ea nano-fiber Injen/AMSOIL performance dry filter provides reliable performance and requires NO OIL. Both Injen Air Filters allow cleaning and durability for 1000's of miles to come.

Features:
Polished tubing
+9.6hp
 

Kit Includes:
SuperNano Dry Web Dry Filter
Mounting hardware
Instructions

This part fits the following BMWs:
1999-2001 E46 323i 325i 328i

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Torque Booster Tube, Black - E46 M3
CARB certified for sale in all 50 states
AFE - Corporate Logo
T#:341700
Part#: 54-10469-B
EO#: D-550-38
Ships in 3 Business Days
$ 94.00 USD
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$ 94.00 USD
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This Torque Booster tube is a great upgrade to your Stage 1 air intake, and can even be used to upgrade your factory intake system. Constructed of 3-ply silicone, it's smoother for less turbulence and more durable for less maintenance. 

  • Works with stock airbox or upgrade your Stage 1 intake to a Stage 2
  • Insualtes against heat
  • Silicone tube smooths out airflow
  • Reduced air turbulence results in more power

Since 1999, aFe (Advanced FLOW Engineering) has been developing and manufacturing high quality accessories in their facility in Corona, California. Starting with air filters and intake systems, and now expanding into exhaust systems, suspension components, tuning modules, and more, aFe products are a great way to improve the performance of your BMW without altering its fundamental character. Owned by a BMW enthusiast, aFe power is recognized the world over as a leader in quality performance products for your BMW.

This part fits the following BMWs:
2001-2007 E46 M3

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E46 M54 2.5L Luft-Technik Intake System - Red Filter
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:19329472
Part#: 008694LA12RKT
Ships on Nov 9, 2026
Sale - Save 15% $ 334.99

This product was last offered at the strikethrough price on
06-14-2026

$ 284.74 USD
Free Shipping
Sale - Save 15%
$ 334.99

This product was last offered at the strikethrough price on
06-14-2026

$ 284.74 USD
Free Shipping

Free-flowing intake featuring a roaring induction noise and increased performance to replace your restrictive factory intake.

Upgrade your E46 driving experience by adding induction noise and increased air flow. Let your engine breath and listen to the sweet sweet intake sounds!

With the factory intake you are limited to a finite amount of air, this leaves your engine under-served and limits induction noise. When it comes to the recipe for upgrading your E46 there are a few ingredients that you must have, power and sound. While you can add an exhaust for a bit more power and sound, the biggest difference you can make is adding power and sound under your hood with a high-flow intake. The factory intake box is also referred to as a silencer specifically designed to lower the induction noise for a refined driving experience, this helped exponentially when selling the cars out of the show room circa early 2000's. We as enthusiasts are no longer interested in subdued intake noise and limited air-flow, we want pure induction noise, we want to hear the air being sucked into the engine as we push down on the accelerator.

Key benefits:

Flows on average 71 CFM more than the stock intake system, a ~27% increase in intake efficiency
Increased induction noise
Maintains factory air induction track
Maintains Stock MAF location, allowing user to switch back to the stock airbox and retain the ECS Silicone boot if desired
Design:

Durable, lightweight 6061 and 5052 aluminum intake tube and bracket design, finished in wrinkle black powder coat
Mounts to locations on chassis utilizing Stainless Steel M6 hardware
MAF mounts to intake using aluminum brackets sealed to intake system with OEM fitment
Maximizes available engine bay space to fit oiled ECS cotton gauze 7” filter
Silicone intake boot with improved flow characteristics replaces failure-prone facotry accordion intake boot with provisions for F-connector fitting and Idle Air Control (IAC) valve inlet

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E46 Luft-Technik Intake System - Black Filter - 323/328i
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:37183632
Part#: 039102LA01KT
Ships on Nov 9, 2026
Sale - Save 15% $ 333.99

This product was last offered at the strikethrough price on
06-14-2026

$ 283.89 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 333.99

This product was last offered at the strikethrough price on
06-14-2026

$ 283.89 USD
Free Shipping on orders $49 and up

ECS High-Flow Intake for E46 – Unleash Performance and Induction Sound

Transform your E46 driving experience with the ECS High-Flow Intake, engineered for improved airflow, exhilarating induction noise, and a noticeable performance boost. Designed as a direct replacement for your restrictive factory intake, this system lets your engine breathe freely while delivering the aggressive intake sound every enthusiast craves.

Why Upgrade?
The factory intake system prioritizes refinement over performance, limiting airflow and muffling the intake noise for a subdued driving experience. The ECS intake changes the game by significantly increasing air intake efficiency and enhancing the auditory excitement under your hood. It’s a must-have for those seeking the perfect balance of power and sound.

Featured in Action:
Catch this intake in action on the ECS YouTube channel's "Chasing Down Track Times at Pitt Race!" episode, see and hear the difference for yourself.

Key Benefits:

Increased Airflow: Boosts intake efficiency by approximately 27%, flowing an average of 71 CFM more than the stock system.
Enhanced Induction Noise: Enjoy the raw, satisfying sound of air rushing into your engine.
Factory Compatibility: Maintains the stock air induction track and MAF location, allowing a seamless switch back to the factory airbox if needed.
Premium Design Features:

Constructed from durable, lightweight 6061 and 5052 aluminum with a wrinkle-black powder coat finish.
Includes a 7” oiled cotton gauze ECS filter for optimal filtration and airflow.
Silicone intake boot with improved flow replaces the failure-prone factory accordion boot, featuring provisions for F-connector and Idle Air Control (IAC) valve.
Stainless steel M6 hardware and aluminum brackets ensure a secure and reliable installation.
Complete Kit Contents:

Silicone inlet
Aluminum MAF flange
Mounting bracket
7” ECS filter (black)
Seals, clamps, and hardware for easy installation
Upgrade your E46 with the ECS High-Flow Intake for a driving experience filled with power, sound, and excitement. Breathe new life into your engine – order now!

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Achilles Motorsports - Corporate Logo
T#:1211243
Part#: 11-AM-TCK-S54KT
Ships in 3 Business Days
$ 454.99 USD
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$ 454.99 USD
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Achilles Motorsports' Throttle Conversion Kit was designed and manufactured to allow the removal of the OEM drive-by-wire system and replaces it with a more conventional throttle cable system. This kit is very useful when the S54 engine is installed in other BMW chassis (ie. E30, E36), or in the E46 M3 chassis when used to run with aftermarket ECU's. This kit features machined, billet aluminum components and incorporates a housing(barrel) with two side-by-side bearings and an 8mm shaft that allows for smooth, linear pedal actuation with no flex.
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BMW M50 Race German Rethreaded IAT Sensor
For vehicles with M50 Manifold Conversions
Race German - Corporate Logo
T#:7703234
Part#: RGM50RIAT
Ships in 10 Business Days
$ 59.99 USD
Free Shipping on orders $49 and up
Race German has devoted themselves to providing quality products for late model BMWs that cover both street and track applications. Race German has now grown their catalog to a wide variety of models and products geared towards keeping your car looking and running nice. A popular conversion on OBD2 M52/S52 engines, is to convert to the M50 intake manifold. The problem with this is, the OBD2 engine harness uses intake air temperature readings. To solve this problem, Race German has carefully milled down the OEM intake air temperature sensor, and re-threaded to the correct threads that are on the M50 intake manifold. The sensor used is an OEM sensor.
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K&N 57 Series FIPK Performance Intake Kit - E46 M3 S54 3.0L
CARB certified for sale in all 50 states
K&N - Corporate Logo
T#:373964
Part#: 57-1003
EO#: D-269-31
Ships in 9 Business Days
$ 367.99 USD
Free Shipping
$ 367.99 USD
Free Shipping

This K&N performance cold air intake kit eliminates the restrictive air box in favor of a high flowing intake system that allows for greater power all throughout the power band. Every K&N intake features a premium air filter that is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase!

K&N's air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • Free-flowing high density polyethylene tube
  • Replaces entire factory air intake system
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty
  • 50 state legal
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VAC Motorsports - Corporate Logo
T#:641215
Part#: VAC-OTDV-S54
Ships in 10 Business Days
$ 64.99 USD
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$ 64.99 USD
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This kit gives offers you a quick and simple solution to delete your oil cooler’s thermostat, and install only takes about 5-10 minutes once you’ve removed the housing.


Enthusiast Bundles - Corporate Logo
T#:25042535
Part#: 023410LA09EBKT
Ships on Nov 24, 2026
Sale - Save 39% $ 2,630.94

This product was last offered at the strikethrough price on
05-05-2026

$ 1,599.99 USD
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Sale - Save 39%
$ 2,630.94

This product was last offered at the strikethrough price on
05-05-2026

$ 1,599.99 USD
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Revolutionize your driving experience with the E46 M3 Valved Performance Catback Exhaust from Turner. Crafted for the discerning driver, this lightweight and free-flowing exhaust boast two independent valved mufflers, offering two distinct driving experiences. Shedding 19lbs or more from the factory exhaust, the Turner catback delivers refined daily driving with closed valves, providing a smooth exhaust note. When the valves open, unleash an untamed racecar roar, experiencing heightened performance and a pure S54 sound. The flexibility to switch between the two at the touch of a button offers the best of both worlds.

Key Features:

  • 19lbs or more weight savings
  • In-house design using FARO ARM laser scanning and SolidWorks 3D CAD modeling
  • Retains factory emissions
  • Compatible with factory or aftermarket headers/front sections
  • Mandrel-bent dual 2.5" 304SS pipe
  • High-flow dual valved, stainless steel mufflers
  • Vacuum actuated valves for adjustable sound
  • Integrated x-pipe for improved exhaust note
  • Kit includes E46 M3 midsection, dual valved mufflers, valve actuators, remote key fobs, exhaust gaskets and hardware, new center exhaust hangers
  • Optional 3.5" Brushed or Chrome tips
  • Free Doorbuster: S54 Open Intake

S54 Open Intake:

Amplify airflow and let your S54 breathe with the Turner Open Intake System. With a 200% greater flow than the factory airbox, this intake enhances induction noises, providing an exhilarating auditory experience. The design integrates seamlessly with OE fresh air scoops, maintaining stock mounting locations and incorporating a 4" conical filter for maximum flow and filtration efficiency.

Features:

  • 200% greater flow than the factory airbox
  • Wrinkle Black Powdercoated Heat Shield
  • Precision fit heat shield for cool air intake
  • Utilizes OE fresh air inlet scoop
  • Aluminum MAF housing maintains OEM MAF scaling
  • 4" conical hi-flow reusable air filter
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E46 M54 3.0L Luft-Technik Intake System - Red Filter
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:19329470
Part#: 008694LA13RKT
Back Ordered
Sale - Save 20% $ 385.99

This product was last offered at the strikethrough price on
06-14-2026

$ 308.79 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 385.99

This product was last offered at the strikethrough price on
06-14-2026

$ 308.79 USD
Free Shipping on orders $49 and up

Free-flowing intake featuring a roaring induction noise and increased performance to replace your restrictive factory intake.

Upgrade your E46 driving experience by adding induction noise and increased air flow. Let your engine breath and listen to the sweet sweet intake sounds!

With the factory intake you are limited to a finite amount of air, this leaves your engine under-served and limits induction noise. When it comes to the recipe for upgrading your E46 there are a few ingredients that you must have, power and sound. While you can add an exhaust for a bit more power and sound, the biggest difference you can make is adding power and sound under your hood with a high-flow intake. The factory intake box is also referred to as a silencer specifically designed to lower the induction noise for a refined driving experience, this helped exponentially when selling the cars out of the show room circa early 2000's. We as enthusiasts are no longer interested in subdued intake noise and limited air-flow, we want pure induction noise, we want to hear the air being sucked into the engine as we push down on the accelerator.

Key benefits:

Flows on average 71 CFM more than the stock intake system, a ~27% increase in intake efficiency
Increased induction noise
Maintains factory air induction track
Maintains Stock MAF location, allowing user to switch back to the stock airbox and retain the ECS Silicone boot if desired
Design:

Durable, lightweight 6061 and 5052 aluminum intake tube and bracket design, finished in wrinkle black powder coat
Mounts to locations on chassis utilizing Stainless Steel M6 hardware
MAF mounts to intake using aluminum brackets sealed to intake system with OEM fitment
Maximizes available engine bay space to fit oiled ECS cotton gauze 7” filter
Silicone intake boot with improved flow characteristics replaces failure-prone facotry accordion intake boot with provisions for F-connector fitting and Idle Air Control (IAC) valve inlet

Show More Show Less
E46 M54 3.0L Luft-Technik Intake System - Black Filter
10X Entries Into Our F80 M3 Sweepstakes
ECS - Corporate Logo
T#:19329469
Part#: 008694LA13BKT
Back Ordered
Sale - Save 20% $ 386.99

This product was last offered at the strikethrough price on
06-14-2026

$ 309.59 USD
Free Shipping on orders $49 and up
Sale - Save 20%
$ 386.99

This product was last offered at the strikethrough price on
06-14-2026

$ 309.59 USD
Free Shipping on orders $49 and up

Free-flowing intake featuring a roaring induction noise and increased performance to replace your restrictive factory intake.

Upgrade your E46 driving experience by adding induction noise and increased air flow. Let your engine breath and listen to the sweet sweet intake sounds!

With the factory intake you are limited to a finite amount of air, this leaves your engine under-served and limits induction noise. When it comes to the recipe for upgrading your E46 there are a few ingredients that you must have, power and sound. While you can add an exhaust for a bit more power and sound, the biggest difference you can make is adding power and sound under your hood with a high-flow intake. The factory intake box is also referred to as a silencer specifically designed to lower the induction noise for a refined driving experience, this helped exponentially when selling the cars out of the show room circa early 2000's. We as enthusiasts are no longer interested in subdued intake noise and limited air-flow, we want pure induction noise, we want to hear the air being sucked into the engine as we push down on the accelerator.

Key benefits:

Flows on average 71 CFM more than the stock intake system, a ~27% increase in intake efficiency
Increased induction noise
Maintains factory air induction track
Maintains Stock MAF location, allowing user to switch back to the stock airbox and retain the ECS Silicone boot if desired
Design:

Durable, lightweight 6061 and 5052 aluminum intake tube and bracket design, finished in wrinkle black powder coat
Mounts to locations on chassis utilizing Stainless Steel M6 hardware
MAF mounts to intake using aluminum brackets sealed to intake system with OEM fitment
Maximizes available engine bay space to fit oiled ECS cotton gauze 7” filter
Silicone intake boot with improved flow characteristics replaces failure-prone facotry accordion intake boot with provisions for F-connector fitting and Idle Air Control (IAC) valve inlet

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Replacement Filter For High Flow Intake/Mass Air Meter Assemblies ...
Call In Or Chat For Best Price! 10X Entries Into Our F80 M3 Sweepstakes
Dinan - Corporate Logo
T#:393299
Part#: D401-0001
Ships on Oct 27, 2026
Sale - Save 11% $ 62.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 56.12 USD
Free Shipping on orders $49 and up
Sale - Save 11%
$ 62.99

This product was last offered at the strikethrough price on
09-28-2026

$ 56.12 USD
Free Shipping on orders $49 and up

K&N - Corporate Logo
T#:367489
Part#: 57-1002
EO#: D-269-31
Special Order: No Guaranteed ETA
$ 367.99 USD
Free Shipping
$ 367.99 USD
Free Shipping

This K&N performance cold air intake kit eliminates the restrictive air box in favor of a high flowing intake system that allows for greater power all throughout the power band. Every K&N intake features a premium air filter that is constructed from cotton gauze material between aluminum mesh - this makes for a long lasting, high performance intake filter. These are very easy to remove and maintain. Turner Motorsport recommends this as one of the first maintenance/modifications you make to your vehicle after you purchase!

K&N's air filters allow increased airflow - dirt and particles stick to the oil on these filters, making them more effective than traditional paper filters in terms of protection. Additionally, K&N believes their filters are more efficient than paper filers - this means more oxygen getting into the engine, allowing vaporized fuel to burn more efficiently and increasing horsepower and fuel economy. The best of both worlds!

  • Covered by the K&N Million Mile Limited Warranty
  • Washable and reusable
  • Will not void vehicle warranty
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Injen - Corporate Logo
T#:558075
Part#: RD1110BLK
EO#: D-476-4
Back Ordered
$ 472.99 USD
$ 472.99 USD

This is a short ram intake and filter kit that will go in place of the restrictive and unattractive factory airbox. Feel a dramatic boost to throttle response and build boost faster by eliminating restrictions and widening the intake track. The Injen RD series is a cold air intake system for the enthusiast craving mid-range power. The intake tube is strategically placed behind the front bumper to acquire colder denser air. Although most of the Injen RD series are a one-piece design several are two-piece designs due to the mass air flow meters. Every Injen RD system is certified or pending by the California Air Resource Board and backed by Injen Technology's limited lifetime warranty.

In 1999 Injen designed the first urethane filter with a built-in velocity stack for added performance. The Injen Technology Research and Development Team calculates each filters mesh and pleat count for each specific application during the development stages. Today the state-of-the-art Ea nano-fiber Injen/AMSOIL performance dry filter provides reliable performance and requires NO OIL. Both Injen Air Filters allow cleaning and durability for 1000's of miles to come.

Features:
Polished tubing
+9.6hp

Kit Includes:
SuperNano Dry Web Dry Filter
Mounting hardware
Instructions

This part fits the following BMWs:
1999-2001 E46 323i 325i 328i

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K&N - Corporate Logo
T#:4099
Part#: 99-5050
In Stock
$ 18.99 USD
Free Shipping on orders $49 and up
Cleaning and re-oiling your K&N filter will prolong its life and maintain K&N's performance advantage. You should clean your filter every year with water and K&N's cleaning solution and re-oil the filter every two years. K&N air fitlers come pre-oiled.
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Forge - Corporate Logo
T#:370918
Part#: VC04R
In Stock
Sale - Save 10% $ 15.99

This product was last offered at the strikethrough price on
09-18-2026

$ 14.36 USD
Free Shipping on orders $49 and up
Sale - Save 10%
$ 15.99

This product was last offered at the strikethrough price on
09-18-2026

$ 14.36 USD
Free Shipping on orders $49 and up

Enhance Engine Performance with Silicone Vacuum Line

Upgrade your car's vacuum system with the Silicone Vacuum Line, a vital component that significantly impacts engine performance. Engineered to resist heat and contaminants, this silicone hose promises exceptional durability, ensuring prolonged and reliable operation.

Featuring an inner diameter of 4mm and a vibrant red color, this silicone hose arrives in a 9-foot section, offering the flexibility to customize lengths as needed. Damaged vacuum hoses can lead to various performance issues, from rough idling to engine starting problems. Promptly replace worn-out hoses to optimize your vehicle's overall performance.

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Mishimoto - Corporate Logo
T#:25241773
Part#: MMCP-3035B
In Stock
$ 11.99 USD
Free Shipping on orders $49 and up
This transition coupler is constructed of high-quality heat resistant silicone, making it useful for fitting air intakes, intercooler piping, and more.
AEM Short Ram Intake System - E46 323Ci, 323i
For 1999-2000 model years without HID headlights
AEM - Corporate Logo
T#:597096
Part#: AEM-22-670R
EO#: D-670
Ships in 4 Business Days
$ 429.99 USD
Free Shipping on orders $49 and up
$ 429.99 USD
Free Shipping on orders $49 and up
A short ram intake system is one of the simplest ways to increase overall performance and sound.
AEM Short Ram Intake System - E46 325Ci, 325i, 325xi, 328Ci, 328i, 32...
For 1999-2000 models years only For 2001-2003 model years only
AEM - Corporate Logo
T#:597095
Part#: AEM-22-672P
EO#: D-670
Ships in 4 Business Days
$ 429.99 USD
Free Shipping on orders $49 and up
$ 429.99 USD
Free Shipping on orders $49 and up
A short ram intake system is one of the simplest ways to increase overall performance and sound.


AEM Short Ram Intake System - E46 323Ci 323i
For 1999-2000 model years without HID headlights
AEM - Corporate Logo
T#:597097
Part#: AEM-22-670P
EO#: D-670
Ships in 4 Business Days
$ 429.99 USD
Free Shipping on orders $49 and up
$ 429.99 USD
Free Shipping on orders $49 and up
A short ram intake system is one of the simplest ways to increase overall performance and sound.
Karbonius Composites - Corporate Logo
T#:37521034
Part#: E46AD09-CF-2
Back Ordered
$ 1,699.00 USD
Free Shipping
$ 1,699.00 USD
Free Shipping
The CSL Airbox is one of the most demanded improvements among BMW M3 E46 enthusiasts. That is both for performance gain and for the sound it brings to the car. On the other hand, it is a laborious, time-consuming, and expensive modification. For those who are looking for a similar sound to the CSL airbox but are not looking for HP gain, we have developed the Karbonius OEM Style S54 airbox. It is a simplified version of the CSL airbox, that, apart from a louder sound from the engine (+12 dB compared to plastic OEM), gives an awesome appearance and allows for easy installation using the stock elbow and MAF sensor. No need to remap! Regarding power increase, we got +4HP in a recent dyno test compared with the OEM airbox. Not really significant considering that dynos can have a 2% margin error. In conclusion, and pending new tests in the future, we can say no significant power increase and no HP loss. NOTES: Need to install with CSL Crankcase breather hose -- BMW # 11157833649) In SMG version, need to install a Genuine BMW CSL SMG Expansion Tank -- BMW # 21532282549 Fitment: BMW M3 E46 BMW Z4 M
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