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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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
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$ 429.99 USD
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A short ram intake system is one of the simplest ways to increase overall performance and sound.
RK Tunes - Corporate Logo
T#:25839065
Part#: E46INT
Ships in 2 Business Days
$ 300.00 USD
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RK Tunes' E46 Intakes are designed in-house utilizing high-quality 5-ply wire-reinforced silicone that can never suck shut. Designed to outflow all other aftermarket options. Will fit on E46 Non-M Models - Professional installation is recommended.
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SnowPerformance - Corporate Logo
T#:21308472
Part#: SNO-40016-BRD
In Stock at Vendor
$ 260.99 USD
$ 260.99 USD
7 gal. water-methanol tank upgrade braided stainless line (w/brackets, solenoid, hose & all necessary fittings) (15lx17hx9w)
RK Tunes - Corporate Logo
T#:25971867
Part#: E46MINT
Ships in 2 Business Days
$ 400.00 USD
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SnowPerformance - Corporate Logo
T#:589571
Part#: SNO-40111.40112
In Stock at Vendor
Starting at $ 359.98 USD
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Starting at $ 359.98 USD
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Choose either V-band or hose camp style rings to add methanol injection easily to almost any vehicle.
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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ECS - Corporate Logo
T#:19825269
Part#: 2101
In Stock
Sale - Save 25% $ 33.99

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

$ 25.49 USD
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Sale - Save 25%
$ 33.99

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

$ 25.49 USD
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Rein - Corporate Logo
T#:378472
Part#: 11731259996-1
In Stock
$ 6.11 USD
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Replace your cracked or frayed vacuum lines. 3.5mm
Genuine BMW - Corporate Logo
T#:14616
Part#: 11611439965
Ships in 1 day
2% off MSRP $ 639.99

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

$ 626.99 USD
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2% off MSRP
$ 639.99

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

$ 626.99 USD
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Genuine BMW Intake Manifold -
This item fits the following BMW Chassis:
E39,E46

Fits BMW Engines including:
M52



Genuine BMW - Corporate Logo
T#:36632
Part#: 11617835819
Ships in 1 day
2% off MSRP $ 958.99

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

$ 939.99 USD
2% off MSRP
$ 958.99

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

$ 939.99 USD


Genuine BMW Air Collector
This item fits the following BMW Chassis:
E46 M3,E85 Z4M,E46,E85 Z4,E86 Z4

Fits BMW Engines including:
S54

Bremmen Parts - Corporate Logo
T#:640143
Part#: 13541705209
In Stock
Sale - Save 22% $ 21.99

This product was last offered at the strikethrough price on
05-03-2026

$ 17.13 USD
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Sale - Save 22%
$ 21.99

This product was last offered at the strikethrough price on
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$ 17.13 USD
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This intake boot connects to the mass air sensor.
Bremmen Parts - Corporate Logo
T#:38676207
Part#: 13541435627
In Stock
Sale - Save 24% $ 15.99

This product was last offered at the strikethrough price on
05-03-2026

$ 12.23 USD
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Sale - Save 24%
$ 15.99

This product was last offered at the strikethrough price on
05-03-2026

$ 12.23 USD
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Bremmen Parts - Corporate Logo
T#:39295550
Part#: 13541438759
In Stock
Sale - Save 22% $ 20.99

This product was last offered at the strikethrough price on
05-03-2026

$ 16.31 USD
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Sale - Save 22%
$ 20.99

This product was last offered at the strikethrough price on
05-03-2026

$ 16.31 USD
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Mass Air Flow Sensor (MAF)
For vehicles with production date from 03/2003 For vehicles with production date from 09/2002 For models with the M56 engine only - Will not fit the M54 intake system
MTC - Corporate Logo
T#:372706
Part#: 13627566983
Ships in 9 Business Days
$ 145.99 USD
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$ 145.99 USD
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DO88 - Corporate Logo
T#:35323507
Part#: LF-250
Ships on Sep 23, 2026
$ 978.99 USD
Free Shipping on orders $49 and up
  

Introducing the do88 Intake System for BMW 320i and 330i G20 – Engineered for Maximum Performance!

At do88, we understand that filtration, airflow, and heat management are crucial when designing an intake system for turbocharged engines.

Our intake system is designed to provide the turbo with excellent filtration, an optimized airflow path, and consistently low inlet temperatures. One of the key challenges with the B48/B46 engine is the intake system’s location near the exhaust manifold, which generates intense heat and causes rapid heat soak.

High intake air temperatures (IATs) can significantly reduce engine performance, as hot, less dense air makes it harder for the turbo to build boost efficiently. To address this, our fully sealed intake system minimizes heat exposure and maintains low IATs. However, fully sealed systems can face airflow restrictions due to the factory airbox’s single air feed. We resolved this by adding a secondary air feed and incorporating a heat shield into the airbox design to block heat from the exhaust manifold. The large 7” airbox ensures ample airflow around the filter and accommodates strut braces.

We replaced the stock intake hose with a high-flow 102mm (4”) mandrel-bent aluminum pipe paired with a custom silicone hose. The system also features a custom-designed air filter with tightly woven cotton gauze for exceptional filtration. The filter is washable, reusable, and built for long-lasting performance.

Unlike the stock air filter box and intake hose, which are designed with silencers to reduce turbo and induction noise, the do88 system eliminates these elements. This allows for a more pronounced and engaging turbo spool and induction sound, giving you a truly dynamic driving experience.

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Dinan - Corporate Logo
T#:18236086
Part#: D401-0037
Ships on Sep 29, 2026
11% off MSRP $ 71.99

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

$ 63.99 USD
Free Shipping
11% off MSRP
$ 71.99

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

$ 63.99 USD
Free Shipping
Reduce your maintenance costs and increase your performance with Dinan's high-flow, washable, drop-in air filter! Using better breathing materials lets your engine make more power while not working as hard, giving you a reliable bump in engine performance! The air filters are a great alternative if a full intake system just is not possible at the moment, but no worries, Dinan has you covered!
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ECS - Corporate Logo
T#:37183633
Part#: 039102LA01RKT
In Stock
Sale - Save 15% $ 333.99

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

$ 283.89 USD
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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 (red)
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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SnowPerformance - Corporate Logo
T#:37892117
Part#: SP30121PRO
Special Order: No Guaranteed ETA
$ 310.99 USD
$ 310.99 USD

ECS - Corporate Logo
T#:19329471
Part#: 008694LA12BKT
In Stock
Sale - Save 15% $ 334.99

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

$ 284.74 USD
Free Shipping on orders $49 and up
Sale - Save 15%
$ 334.99

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

$ 284.74 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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SnowPerformance - Corporate Logo
T#:640585
Part#: 82040
Special Order: No Guaranteed ETA
$ 23.99 USD
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Burger Motorsports - Corporate Logo
T#:20815192
Part#: BMS.SA.WMI.NOZ
Ships on Oct 2, 2026
Starting at $ 40.00 USD
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Starting at $ 40.00 USD
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With CNC machined serviceable/cleanable nozzle inserts for precise fluid metering. Choose single or dual nozzles and match the flow rate to your power needs! ​Water/Methanol Injection (WMI) nozzles are determined by the intended power and how many bungs your charge pipe has. These nozzles are 1/8” NPT and screw in to bungs included on most aftermarket charge pipes. BMS "super atomizing" nozzles are designed and manufactured by BMS and are known for their great atomization and flow characteristics. The number on the methanol injection nozzle represents the approximate gallons per hour of fluid when at full flow. Generally speaking running two smaller nozzles is preferred to one larger nozzle for an equal flow to improve fluid atomization and distribution.
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ECS - Corporate Logo
T#:363896
Part#: 003402ECS04A-02
Ships in 1-2 days
Sale - Save 10% $ 9.99

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

$ 8.99 USD
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Sale - Save 10%
$ 9.99

This product was last offered at the strikethrough price on
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$ 8.99 USD
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3" To 2.5" Silicone Coupler 3" Length

Enhance the performance and durability of your BMW or MINI with the 3" To 2.5" Silicone Coupler 3" Length. This silicone coupler provides a reliable connection between components, ensuring optimal airflow and reducing the risk of leaks. Engineered for durability and heat resistance, it withstands high temperatures and harsh conditions. Upgrade your BMW or MINI with this premium silicone coupler for improved performance.

  • Reliable connection for optimal airflow
  • Reduces the risk of leaks for enhanced performance
  • Engineered for durability and heat resistance
  • Fits both BMW and MINI models
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Genuine European BMW - Corporate Logo
T#:360704
Part#: 11617833497
Special Order: No Guaranteed ETA
$ 3,529.99 USD
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$ 3,529.99 USD
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Genuine European BMW - Corporate Logo
T#:360703
Part#: 11617833496
Special Order: No Guaranteed ETA
$ 5,921.99 USD
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$ 5,921.99 USD
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Genuine European BMW - Corporate Logo
T#:569148
Part#: 11618299520
Special Order: No Guaranteed ETA
$ 4,015.99 USD
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$ 4,015.99 USD
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Main section of the P54 race intake

Genuine European BMW - Corporate Logo
T#:373306
Part#: 11617833496KT2
Back Ordered
$ 12,548.99 USD
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$ 12,548.99 USD
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This is a Genuine BMW Euro CSL Intake Kit, one of the most sought after intakes in the European market! Included is everything you need to install this intake on your E46 M3's S54. Not only does this intake provide massive flow benefits and look amazing under the hood, the CSL intake also produces an amazing tone that can't be replicated by any other intake in the market! This kit is specifically made for an E46 M3 with an SMG Transmission. *A tune will be required to disable the MAF when installing this intake.
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Hitachi Mass Air Flow Sensor - M52TU, M54 Engine (E46, E39, Z3) ...
For vehicles with a production date from 09/1998 up to 03/2003
Hitachi - Corporate Logo
T#:5691196
Part#: 13621432356
Back Ordered
$ 156.99 USD
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$ 156.99 USD
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Replacement mass air sensor for M52TU 2.5/2.8 and M54 2.5 engines. 3.0" diameter. The mass air sensor/meter measures the volume of air being fed into the engine so that the fuel levels can be adjust for optimal performance. A faulty sensor can lead to improper fuel mixture and rough idle and poor performance and gas mileage. Replace your faulty sensor with a high-quality sensor to restore normal operation.
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Genuine BMW Emissions Service Kit - E46 M3
For vehicles with SMG gearbox and production date up to 09/2004
Genuine BMW - Corporate Logo
T#:577309
Part#: 11157840446KT5
Back Ordered
$ 613.99 USD
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$ 613.99 USD
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