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BMW E39 525i M54 2.5L

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BMW E39 525i M54 2.5L Engine Intake Parts

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F-Connector

ES#33009 - 13327503677 - F-Connector - Connects to the air intake boot - Genuine BMW - BMW

Connects to the air intake boot affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
33009
Mfg#:
13327503677
In Stock
$2.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Snow Performance Water Methanol Injection Nozzle - 7GPH

ES#4685488 - SN0-N0700 - Snow Performance Water Methanol Injection Nozzle - 7GPH - Snow Performance Hyper-Sonic water-methanol injection nozzle - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Snow Performance Hyper-Sonic water-methanol injection nozzle affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4685488
Mfg#:
SN0-N0700
In Stock at Vendor
$31.99 USD
Free Shipping
on orders $49 and up

Air Box Lid Clips - 34mm

ES#34839 - 13711707044 - Air Box Lid Clips - 34mm - Used to lock the lid of your air box down - Genuine BMW - BMW

Used to lock the lid of your air box down affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34839
Mfg#:
13711707044
In Stock
$4.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Red High Temp Nylon Tubing - 20ft

ES#4339592 - SN0-8087 - Red High Temp Nylon Tubing - 20ft - Water Methanol Tubing - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Water Methanol Tubing affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4339592
Mfg#:
SN0-8087
In Stock
$20.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Snow Performance Water Tank Upgrade - 7gal

Braided SS Line/Brackets/Solenoid/4AN Fittings affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
4680249
Mfg#:
SN0-40016-BRD
Ships in 1 Business Day
$260.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMC Performance Air Filter

ES#3195193 - FB132/01 - BMC Performance Air Filter - Lifetime high-flow air filter that's a direct replacement - BMC - BMW

Lifetime high-flow air filter that's a direct replacement affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
BMC - Corporate Logo
ES#:
3195193
Mfg#:
FB132/01
In Stock at Vendor
$84.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Intake Boot

ES#34017 - 13541435625 - Intake Boot - Boot that attaches to the mass air sensor - Genuine BMW - BMW

Boot that attaches to the mass air sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
34017
Mfg#:
13541435625
Ships in 1-2 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.

$34.99

This product was last offered at the strikethrough price on
06-04-2026

$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Universal Water/Methanol Injection (WMI) Kit Builder

ES#3617743 - BMS-WMI - Universal Water/Methanol Injection (WMI) Kit Builder - Grab everything you need to start your WMI build! - Burger Motorsports - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Grab everything you need to start your WMI build! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burger Motorsports - Corporate Logo
ES#:
3617743
Mfg#:
BMS-WMI
Ships on Jun 22, 2026
Starting at $226.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

Performance Air Filter

ES#11019 - 33-2070 - Performance Air Filter - Featuring a million mile warranty! - K&N - BMW

Featuring a million mile warranty! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
K&N - Corporate Logo
ES#:
11019
Mfg#:
33-2070
Ships on Jul 8, 2026
$68.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Mass Air Flow Sensor (MAF)

ES#2867842 - 13621432356 - Mass Air Flow Sensor (MAF) - Complete with housing. - Febi - BMW

Complete with housing. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
We Price Match - Give Us A Call or Chat!

Brand:
Febi - Corporate Logo
ES#:
2867842
Mfg#:
13621432356
Ships on Sep 1, 2026
$205.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

3 Pin Connector

ES#4772594 - 12521706096 - 3 Pin Connector - Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV). - ECS - BMW

Includes connector housing with terminals and seals. Commonly used for the idle air control valve (IACV). affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4772594
Mfg#:
12521706096
In Stock
ON SALE! SAVE 11%
$10.99

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

$9.78 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gold Heat Reflective Sheet - 20" x 20"

ES#3022272 - HEA-GWRAP-20x20 - Gold Heat Reflective Sheet - 20" x 20" - Control heat and dress up your engine bay - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Control heat and dress up your engine bay affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3022272
Mfg#:
HEA-GWRAP-20X20
In Stock at Vendor
$33.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Hose Clamp

ES#16326 - 07129952137 - Hose Clamp - Attaches the Intake tube and MAF sensor - Genuine BMW - BMW

Attaches the Intake tube and MAF sensor affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Genuine BMW - Corporate Logo
ES#:
16326
Mfg#:
07129952137
In Stock
$6.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Water/Methanol Injection Hose - Upgraded Steel Braided Hardline - 18'

ES#4715257 - BMS-WMI-SBLU - Water/Methanol Injection Hose - Upgraded Steel Braided Hardline - 18' - This kit upgrades your WMI plastic lines to stainless steel BMS Elite braided lines. - Burgaflex - Audi BMW Volkswagen Mercedes Benz MINI Porsche

This kit upgrades your WMI plastic lines to stainless steel BMS Elite braided lines. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Burgaflex - Corporate Logo
ES#:
4715257
Mfg#:
BMS-WMI-SBLU
Ships on Jun 22, 2026
$196.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Air Intake Boot

ES#4883958 - 13541435627 - Air Intake Boot - Connects directly to the throttle body - Bremmen Parts - BMW

Connects directly to the throttle body affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4883958
Mfg#:
13541435627
Ships on Sep 23, 2026
Auto Notify
ON SALE! SAVE 24%
$15.99

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

$12.23 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Snow Performance Boost Cooler

ES#3617804 - SN0-40900 - Snow Performance Boost Cooler - Extreme Environment 300 PSI UHO Water Methanol Pump - SnowPerformance - BMW

Extreme Environment 300 PSI UHO Water Methanol Pump affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
3617804
Mfg#:
SN0-40900
Special Order: No Guaranteed ETA
$194.99 USD
Free Shipping
on orders $49 and up

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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

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