BMW Intake Parts for BMW E46 M3 S54 (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#:35019964
Part#: E46AD02-CF-2
Ships on Oct 8, 2026
$ 2,349.00 USD
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$ 2,349.00 USD
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The ultimate intake for the E46 M3, made from prepeg carbon fiber in the same weave as the Genuine airbox for a OE look. The Karbonius airbox also features carbon fiber intake trumpets in place of the factory's plastic trumps, and are finished to a ultra smooth finish for perfect airflow.

OPTIONAL ESS E46 M3 Alpha-N E-Flash ECU Tuning Software

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Karbonius Composites - Corporate Logo
T#:29931698
Part#: E46AD04-CF-2
In Stock
$ 884.00 USD
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$ 884.00 USD
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Snorkel extension the allows ducting from CSL bumper to airbox, requires use of CSL style airbox and mounts like the factory flap unit.
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

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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Karbonius Composites - Corporate Logo
T#:39329313
Part#: E46AD02-CFM-2
Ships on Nov 18, 2026
$ 2,449.00 USD
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$ 2,449.00 USD
Free Shipping
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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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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Enthusiast Bundles - Corporate Logo
T#:25042535
Part#: 023410LA09EBKT
In Stock
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
Free Shipping

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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Karbonius Composites - Corporate Logo
T#:37521034
Part#: E46AD09-CF-2
Back Ordered
$ 1,699.00 USD
Free Shipping
$ 1,699.00 USD
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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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AEM Electronics - Corporate Logo
T#:369781
Part#: 30-3000
In Stock
11% off MSRP $ 674.95

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

$ 599.95 USD
Free Shipping
11% off MSRP
$ 674.95

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

$ 599.95 USD
Free Shipping
Increase the power of your vehicle by utilizing a water/meth injection kit. The purpose of water/meth injection is to reduce combustion temperatures and allow you to run higher boost pressures on pump gas. When using meth injection, pump gas will resist detonation much better because the methanol essentially raises the octane rating of the fuel and will allow you to run much more aggressive street tuning. This AEM kit has more features and components than any other comparably priced injection kits on the market. 1 Gallon tank with built in low level switch Boost referenced progressive controller ?Boost Safe? readiness safety system Check valve integrated into nozzle to prevent unintended fluid flow One injector and two nozzles to cover a wide range of HP levels High Pressure 200psi Recirculation-style pump Progressive Controller: Start Injection Boost 1-11psi. Full Injection Boost 6-39psi LED dash light for system status and low fluid warning 20 ft. of injection tubing
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AEM Electronics - Corporate Logo
T#:20815166
Part#: 30-3313
In Stock
12% off MSRP $ 129.99

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

$ 114.99 USD
Free Shipping
12% off MSRP
$ 129.99

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

$ 114.99 USD
Free Shipping
AEM Electronics water/methanol injection nozzles are available in different jet sizes that allow you to select the appropriate jet for your power level. The nozzles are serviceable and can be disassembled for cleaning. Includes interchangeable swirl generators for 250 500 or 1000cc configurations.
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AEM Electronics - Corporate Logo
T#:590418
Part#: 30-3304
In Stock at Vendor
11% off MSRP $ 247.99

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

$ 219.99 USD
Free Shipping
11% off MSRP
$ 247.99

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

$ 219.99 USD
Free Shipping

Upgrade your BMW or MINI with the V2 Water/Methanol Standard Controller - Internal MAP W/35PSI Max

This advanced controller optimizes the injection of water/methanol, maximizing power output while ensuring engine safety. With its internal MAP sensor and 35PSI maximum pressure capacity, it offers precise control and reliability under various driving conditions. Experience improved horsepower, torque, and fuel economy with this state-of-the-art controller from a trusted brand.

  • Enhances performance and efficiency for BMW and MINI vehicles
  • Maximizes power output while ensuring engine safety
  • Internal MAP sensor for precise control
  • 35PSI maximum pressure capacity for reliability
  • Improves horsepower, torque, and fuel economy
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AEM Electronics - Corporate Logo
T#:20815164
Part#: 30-3326
In Stock at Vendor
11% off MSRP $ 149.99

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

$ 132.99 USD
Free Shipping
11% off MSRP
$ 149.99

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

$ 132.99 USD
Free Shipping
AEM?s stainless steel Water/Methanol Injection Solenoid (PN 30-3326) eliminates any chance of water/methanol flow into the inlet when the WMI system is not engaged. This affordable water/methanol injection accessory features high flow capability (3,600cc/min) and an impressively low current draw of only 0.75A that does not require the use of an additional relay. The valve body features include 1/8? NPT ports with included push-to-lock ?? hose fittings for easy connection and EPDM seals that stand up to corrosion for years of reliable use. It?s an inexpensive insurance policy to protect your high performance engine regardless of the brand of water/methanol injection system you are using! Features: High flow rating (3600 cc/min @ 150 psi) Low current draw (0.75A @ 13.5V) No additional relay required Standard 1/8?- 27 NPT inlet/outlet with included ?? push-to-lock hose fittings for easy installation Fast response time Tested to 200 PSI Stainless steel enclosure and internals with EPDM seals for corrosion resistance Flying leads simplify connection with user desired connector
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