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BMW E46 325i M54 2.5L

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BMW E46 325i M54 2.5L Engine Intake Parts

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Boost Cooler Stage 2.5 Progressive Water/Methanol Injection Kit - no tank

Unlock 50-70 HP on your boosted vehicle while decreasing your air temps by up to 100 degrees! Stainless Steel Braided Line, 4AN Fittings, no tank included!

Brand:
SnowPerformance - Corporate Logo
ES#:
4608739
Mfg#:
SN0-210-BRD-T
In Stock at Vendor
$687.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

V2 Water/Methanol Standard Controller - Internal MAP W/35PSI Max

ES#3691401 - 30-3304 - V2 Water/Methanol Standard Controller - Internal MAP W/35PSI Max - A progressive type controller where fluid will be injected in proportion to the amount of boost that is detected by the internal MAP sensor - Controller only - AEM Electronics - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A progressive type controller where fluid will be injected in proportion to the amount of boost that is detected by the internal MAP sensor - Controller only Controller only - Does not include addtional components

Brand:
AEM Electronics - Corporate Logo
ES#:
3691401
Mfg#:
30-3304
In Stock at Vendor
11% off MSRP

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

$247.99

This product was last offered at the strikethrough price on
08-19-2026

$219.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Filter

ES#3676616 - 13721744869 - Air Filter - Protect your engine and let it breathe - Hengst - BMW
ECS Tuning recommends this product.

Protect your engine and let it breathe 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat! Hengst is our preferred OEM filtration supplier!

Brand:
Hengst - Corporate Logo
ES#:
3676616
Mfg#:
13721744869
In Stock
$17.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Mass Sensor (MAF)

ES#34425 - 13627566984 - Air Mass Sensor (MAF) - Brand new unit - Genuine BMW - BMW

Brand new unit For vehicles with production date from 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
34425
Mfg#:
13627566984
In Stock
Limited Qty Sale
$696.99

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

$640.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#34424 - 13627566983 - Mass Air Flow Sensor (MAF) - Controls the air / fuel mixture of the engine - Genuine BMW - BMW

Controls the air / fuel mixture of the engine For models with the M56 engine only - Will not fit the M54 intake system

Brand:
Genuine BMW - Corporate Logo
ES#:
34424
Mfg#:
13627566983
Ships in 1 day
4% off MSRP

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

$670.99

This product was last offered at the strikethrough price on
08-19-2026

$640.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

High Flow Water Methanol Check Valve

ES#3988118 - Sn0-8cv-qc - High Flow Water Methanol Check Valve - Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol. - SnowPerformance - Audi BMW Volkswagen MINI

Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol.

Brand:
SnowPerformance - Corporate Logo
ES#:
3988118
Mfg#:
SN0-8CV-QC
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Injection Kit - Multi Input

ES#2972925 - 30-3350 - Water/Methanol Injection Kit - Multi Input - Increase power and efficiency while decreasing combustion temperatures - AEM Electronics - Audi BMW Volkswagen MINI

Increase power and efficiency while decreasing combustion temperatures For Naturally Aspirated Engines

Brand:
AEM Electronics - Corporate Logo
ES#:
2972925
Mfg#:
30-3350
In Stock at Vendor
11% off MSRP

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

$658.99

This product was last offered at the strikethrough price on
08-19-2026

$584.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Throttle Housing / Body

ES#34160 - 13547502444 - Throttle Housing / Body - Electronic throttle sensor and assembly - Genuine BMW - BMW

Electronic throttle sensor and assembly

Brand:
Genuine BMW - Corporate Logo
ES#:
34160
Mfg#:
13547502444
Ships in 3 Business Days
3% off MSRP

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

$603.99

This product was last offered at the strikethrough price on
08-19-2026

$584.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Air Mass Sensor (MAF)

ES#4941260 - 13627566984 - Air Mass Sensor (MAF) - Restore mileage and performance - Holstein - BMW

Restore mileage and performance

Brand:
Holstein - Corporate Logo
ES#:
4941260
Mfg#:
13627566984
In Stock at Vendor
$144.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Pro 5 R Restore Kit

ES#517882 - 90-50501 - Pro 5 R Restore Kit - Used for Pro 5 R filters - AFE - Audi BMW Volkswagen MINI

Used for Pro 5 R filters

Brand:
AFE - Corporate Logo
ES#:
517882
Mfg#:
90-50501
In Stock
22% off MSRP

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

$26.99

This product was last offered at the strikethrough price on
08-19-2026

$21.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Intake Boot

ES#2608539 - 13541438761 - Air Intake Boot - Connects mass airflow sensor to air intake tube - URO - BMW

Connects mass airflow sensor to air intake tube 2X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!
For models with the M56 SULEV engine only - not compatible with the M54B25 engine.

Brand:
URO - Corporate Logo
ES#:
2608539
Mfg#:
13541438761
In Stock
$24.99

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

$16.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Temperature Sensor

ES#4365289 - 13629899008 - Air Temperature Sensor - Monitors intake air temperature - Genuine BMW - BMW

Monitors intake air temperature

Brand:
Genuine BMW - Corporate Logo
ES#:
4365289
Mfg#:
13629899008
Ships in 1 day
$59.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

BMS Billet Water/Methanol Injection Tank Cap With Safety Check Valve

ES#4714530 - BMSWMITC - BMS Billet Water/Methanol Injection Tank Cap With Safety Check Valve - The Burger Motorsports custom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out! - Burger Motorsports - Audi BMW Volkswagen MINI Porsche

The Burger Motorsports custom billet Water/Methanol Injection (WMI) cap includes an integrated heavy-duty check valve to let much-needed air in and prevent dangerous WMI vapor/fumes and liquid from getting out!

Brand:
Burger Motorsports - Corporate Logo
ES#:
4714530
Mfg#:
BMSWMITC
In Stock
$59.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Idle Control Valve Grommet

ES#25465 - 11611437453 - Idle Control Valve Grommet - Rubber grommet that helps hold the idle control valve - Genuine BMW - BMW

Rubber grommet that helps hold the idle control valve

Brand:
Genuine BMW - Corporate Logo
ES#:
25465
Mfg#:
11611437453
In Stock
$22.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Torx Bolt With Washer - Priced Each

ES#3250894 - 11617533344 - Torx Bolt With Washer - Priced Each - Used to attach the DISA valve to the intake manifold. - Genuine BMW - BMW

Used to attach the DISA valve to the intake manifold.

Brand:
Genuine BMW - Corporate Logo
ES#:
3250894
Mfg#:
11617533344
In Stock
$4.99

This product was last offered at the strikethrough price on
03-04-2026

$2.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Engine Intake Parts

All engine performance begins with engine breathing. That's why we have a large inventory of stock and performance intake manifolds, and related intake manifold parts, including MAF sensors, intake hoses, cold air intake systems, and engine air filters for both normally aspirated and forced induction engines. To perform it's best, your engine needs to breathe clean and breathe free.

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Manufacturer names and/or part numbers are used only for identification purposes.

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