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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URO Idle Control Valve - 13411744713
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T#:28171557
Part#: 13411744713
In Stock
$ 104.44 USD
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$ 104.44 USD
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A common cause of a sporadic, lumpy idle.
Throttle Position Sensor - Priced Each
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T#:35863166
Part#: 13637840383
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$ 41.99 USD
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Detects the throttle valve position and when malfunctioning may throw codes and/or cause the motor to run poorly.

Fits the following BMW engines:
S54 S62

Karbonius E46 M3 CSL (S54) Carbon Airbox - Gloss Finish
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Karbonius Composites - Corporate Logo
T#:35019964
Part#: E46AD02-CF-2
Ships on Aug 11, 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 CSL Carbon Snorkel - E46 M3 (S54) - Gloss
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T#:29931698
Part#: E46AD04-CF-2
Ships in 9 Business Days
$ 779.00 USD
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$ 779.00 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.

Intake Air Adjustment Unit/DISA Valve
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T#:384146
Part#: 11617544806
Ships in 1 Business Day
$ 189.99 USD
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Air adjustment unit controls the path of the air in the intake manifold, allowing either a shorter or longer runner length. A common source of trouble causing low RPM sluggishness and accompanied by a clicking sound from the engine bay.
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Mass Air Flow Sensor (MAF) - E39 530i, Z3 3.0i, E46 330xi
For vehicles with production date up to 03/2003 For vehicles with production date up to 09/2002
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T#:34348682
Part#: 13627567451
In Stock
$ 78.99 USD
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$ 78.99 USD
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The URO Mass Air Flow Sensor (MAF) is a vital component for BMW engines, providing accurate measurement of intake air flow to ensure an optimal air-fuel mixture for peak performance, fuel efficiency, and reduced emissions. This sensor is designed to meet or exceed OEM standards, delivering consistent and reliable data to the engine control unit. Available from Turner Motorsport, the URO Mass Air Flow Sensor (MAF) offers BMW owners a dependable, direct-fit replacement for maintaining smooth acceleration and enhanced fuel economy.

  • Optimizes fuel economy by delivering precise air intake measurements
  • Improves engine performance with smooth, responsive acceleration
  • Reduces emissions by promoting efficient combustion
  • Engineered to BMW specifications for an exact fit and easy installation
  • Built with high-quality materials to withstand extreme engine conditions
  • Available from Turner Motorsport, a trusted provider of BMW replacement parts

The URO Mass Air Flow Sensor (MAF) is an ideal choice for BMW owners looking to ensure their vehicle’s optimal performance, fuel efficiency, and longevity.

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Karbonius E46 M3 CSL (S54) Carbon Snorkel - Matte Finish
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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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CSL Air Box Race - S54
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Karbonius Composites - Corporate Logo
T#:7164824
Part#: E46AD03
Ships in 3 Business Days
$ 2,249.00 USD
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$ 2,249.00 USD
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Intake system made 100% in prepreg carbon fiber in autoclave

Karbonius E46 M3 CSL (S54) Carbon Airbox - Matte Finish
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T#:39329313
Part#: E46AD02-CFM-2
Ships in 3 Business Days
$ 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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Secondary Air Pump
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T#:638006
Part#: 11727571589
Ships on Aug 4, 2026
$ 259.99 USD
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$ 259.99 USD
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This secondary air pump helps to reduce emissions by mixing fresh air with the exhaust. When this part fails cause a engine fault code and it will trigger a "service engine soon" light. 

This item fits the following BMWs:
3/2003-2005 E46 BMW 325i 325ci 325xi 330i 330ci 330xi 
2004-2005 E60 BMW 525i 530i
2004-2010 E60 BMW 545i M5
2004-2011 E63 BMW 645ci M6
10/2003-2006 E53 BMW X5 3.0i
2004-2005 E83 BMW X3 3.0i

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Intake Manifold Adjusting Unit
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T#:15445584
Part#: 11611440049
Ships in 1 Business Day
$ 192.99 USD
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A bad DISA valve can cause a variety of issues, from a loud racket in the engine bay, hesitation at low rpm and a rough idle with lean codes. If the valve is making a loud noise, we recommend replacing it as soon as possible. It is possible for the pin holding the flap to be sucked into the motor causing serious damage. Very easy to replace, just need to undo the 4 bolts holding it to the intake manifold.
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Secondary Air Pump
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T#:638005
Part#: 11727553056
In Stock
$ 201.99 USD
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$ 201.99 USD
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A quality replacement Secondary Air Pump from URO. Located in the right portion of the engine bay, near the shock tower and windshield wiper fluid reservoir.


Air Intake Boot
For models with the M56 SULEV engine only - not compatible with the M54B25 engine.
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T#:375337
Part#: 13541438761
In Stock
$ 24.99

This product was last offered at the strikethrough price on
04-09-2026

$ 16.99 USD
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$ 16.99 USD
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Connects mass airflow sensor to air intake tube
Air Intake Boot
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T#:591893
Part#: 13541438759
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$ 18.39 USD
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Connects air intake tube to throttle body
URO Throttle Body Boot - E46 M3, Z3 M
For vehicles with production date up to 10/2004
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T#:43750230
Part#: 11612466477
Ships in 1 Business Day
$ 25.99 USD
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$ 25.99 USD
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This hose attaches the intake plenum to the throttle body, six required per vehicle.

URO Throttle Body Boot - E46 M3, Z4 M
For vehicles with production date from 10/2004+
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T#:43750229
Part#: 11617835861
Ships in 1 Business Day
$ 25.99 USD
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$ 25.99 USD
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This hose attaches the intake plenum to the throttle body, six required per vehicle.

Air Intake Boot
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T#:377526
Part#: 13541435627
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$ 12.99 USD
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$ 12.99 USD
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Connects directly to the throttle body
Air Intake Boot
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T#:377309
Part#: 13541705209
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$ 17.99 USD
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Connects directly to the MAF

Carbon Fiber OEM-Style Intake Manifold - E46 M3
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Karbonius Composites - Corporate Logo
T#:37521034
Part#: E46AD09-CF-2
Ships in 3 Business Days
$ 1,699.00 USD
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$ 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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