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BMW E39 525i M54 2.5L Performance Engine Parts

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ES#3469706 - sn0-8cv  - High Flow Water Methanol Check Valve (Nylon Line) - 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 Mercedes Benz MINI Porsche

Custom made with 100% methanol resistant stainless steel spring and EPDM seals ensuring zero corrosion even with high concentrations of methanol. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
SnowPerformance - Corporate Logo
ES#:
3469706
Mfg#:
SN0-8CV
Ships in 7 Business Days
$31.99 USD
Free Shipping
on orders $49 and up
ES#3027872 - PPK-E39-M54 - Turner Motorsport Power Pulley Kit - Bosch Alternator pulley - Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises! - Turner Motorsport - BMW

Possibly the best horsepower-per-dollar available anywhere. No downsides, no compromises! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3027872
Mfg#:
PPK-E39-M54
Ships in 4 Business Days
ON SALE! SAVE 15%
$374.99

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

$318.74 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3138971 - N4MS4352 - Shark Injector Performance Software - Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +5HP +5LB/FT gains! - Shark Injector - BMW

Performance software designed to unlock your BMW's potential. Removes top speed limiter, raises rev limit to 7,000rpm, improves throttle response, and improves power output: +5HP +5LB/FT gains! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Shark Injector - Corporate Logo
ES#:
3138971
Mfg#:
N4MS4352
Ships on Aug 11, 2026
ON SALE! SAVE 10%
$349.00

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

$314.10 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3022267 - HEA-WRAPKIT-BLK - Fiberglass Exhaust Wrap - Black - 2" x 50' - Designed to handle continuous temperatures up to 1,200F - Prosport Performance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Designed to handle continuous temperatures up to 1,200°F affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Prosport Performance - Corporate Logo
ES#:
3022267
Mfg#:
HEA-WRAPKIT-BLK
Ships on Jun 25, 2026
$28.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#117625 - 51457141385 - Airbag Dashboard Lid - Black - Genuine BMW - BMW

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For wagon models

Brand:
Genuine BMW - Corporate Logo
ES#:
117625
Mfg#:
51457141385
Ships in 5 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.

$298.99

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

$290.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#3184678 - SBBM0013S - Sprint Booster Power Converter V3 - Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes - Sprint Booster - BMW

Reduces the delay of your "Drive by Wire" throttle response - All new V3 model provides additional features such as 'valet' and 'pedal lock' modes affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits Later model E39 2002 and above

Brand:
Sprint Booster - Corporate Logo
ES#:
3184678
Mfg#:
SBBM0013S
Ships on Jun 22, 2026
$289.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
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
ES#4146850 - 026732TMS06-17 - Turner Motorsport Double Wall Slash Cut Exhaust Tip - 3.0 Inlet - 3.5 OD - Stepped Right - Brushed Stainless - Right - Brushed Stainless Slash Cut Exhaust Tip - 3.0 Inlet - 3.5 OD - Turner Motorsport - BMW MINI

Right - Brushed Stainless Slash Cut Exhaust Tip - 3.0 Inlet - 3.5 OD affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Not vehicle specific. You MUST measure prior to purchasing!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4146850
Mfg#:
026732TMS06-17
In Stock
ON SALE! SAVE 53%
$149.99

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

$70.02 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4758963 - 5150-HPMBS-M54 - Performance Main Bearing Set - M54 - Performance Coated Main Bearing Set for the M54 Engine - Std. Size - 5150 Autosport - BMW

Performance Coated Main Bearing Set for the M54 Engine - Std. Size affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
5150 Autosport - Corporate Logo
ES#:
4758963
Mfg#:
5150-HPMBS-M54
Ships in 4 Business Days
$274.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
ES#2793046 - 01600 - Purple Ice - 12oz - High performance coolant conditioner - Royal Purple - Audi BMW Volkswagen Mercedes Benz MINI Porsche

High performance coolant conditioner affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Royal Purple - Corporate Logo
ES#:
2793046
Mfg#:
01600
In Stock
$12.99 USD
Free Shipping
on orders $49 and up

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 2 Business Days
$260.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4821164 - 049478LA03-02 - 3.5" Universal Black Chrome Swivel Exhaust Tip - Priced Each - Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet - Turner Motorsport - BMW MINI

Universal exhaust tips with a swivel adjustability to fine tune your exhaust. 2.5" Inlet & a 3.5" Double Wall, Angle Cut Outlet affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Can be used on any 2.5" exhaust piping. Measure before ordering.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4821164
Mfg#:
049478LA03-02
In Stock
ON SALE!
$68.99

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

$64.66 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2764105 - MM0C10 - Universal Oil Cooler - 10 Row - Serious engine oil cooling for the most demanding engines - Mishimoto - Audi BMW Volkswagen MINI

Serious engine oil cooling for the most demanding engines affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For custom applications only. Not a direct bolt on.

Brand:
Mishimoto - Corporate Logo
ES#:
2764105
Mfg#:
MM0C10
In Stock
$126.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4056090 - 24-270X - 24-270X Accusump Pro Electric Valve Kit - Allows convenient remote operation of Accusump in street, drag race and pre-oiling applications - Canton Racing - Audi BMW Volkswagen MINI

Allows convenient remote operation of Accusump in street, drag race and pre-oiling applications affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Canton Racing - Corporate Logo
ES#:
4056090
Mfg#:
24-270X
Ships on Jun 26, 2026
$228.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
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
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Partial Replacement

More About Performance Engine Parts

Our name says it all. That's why ECS Tuning is dedicated to providing our customers with the broadest possible assortment of engine tuning options at a range of prices and options to fit any budget. Start small and grow your car into something special with performance engine upgrades from a company that has tuning in its name and its blood.

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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