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Your Vehicle BMW E46 325Ci M54 2.5L

BMW E46 325Ci M54 2.5L Performance Engine Parts

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ES#2581452 - 888010330 - High Performance Water Pump - With O-Ring - Stainless steel impeller and 20% increase in flow! - Stewart Components - BMW

Stainless steel impeller and 20% increase in flow! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
When it comes to cooling, Stewart is the final word in high performance pumps. The ultimate in BMW cooling with a limited lifetime warranty!

Brand:
Stewart Components - Corporate Logo
ES#:
2581452
Mfg#:
888010330
Ships in 4 Business Days
$199.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2855201 - SN0210 - Stage 2.5 Boost-Controlled Water/Meth Injection Kit - Features a gauge pod controller, which allows for the best control and visibility. 7-color OLED displays boost, percentage of flow, low level, and even faults. - SnowPerformance - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Features a gauge pod controller, which allows for the best control and visibility. 7-color OLED displays boost, percentage of flow, low level, and even faults. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Gauge Pod controller, for optimum control even from the driver's seat!

Brand:
SnowPerformance - Corporate Logo
ES#:
2855201
Mfg#:
SN0210
In Stock
$583.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4659317 - 023536la02KT - E46 325/330 Performance Valved Cat-Back Exhaust - Lightweight performance exhaust for your E46, featuring a valved muffler and controller to change the sound with the click of a button. - Turner Motorsport - BMW
ECS Tuning recommends this product.

Lightweight performance exhaust for your E46, featuring a valved muffler and controller to change the sound with the click of a button. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Cars without factory exhaust valve will require a vacuum source for the valve controller.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4659317
Mfg#:
023536LA02KT
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 10%
$1220.23

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

$1098.28 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#517900 - 30-3000 - AEM V3 Water/Methanol Injection Kit (30-3300) - Increase power and efficiency while decreasing combustion temperatures - AEM Electronics  - Audi BMW Volkswagen Mercedes Benz MINI Porsche

Increase power and efficiency while decreasing combustion temperatures affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
AEM Electronics  - Corporate Logo
ES#:
517900
Mfg#:
30-3000
Ships in 1-2 days
$579.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2992604 - 3055 - E46 High Performance Aluminum Radiator - Lower engine temperatures mean more power and longer life of engine components! - CSF - BMW

Lower engine temperatures mean more power and longer life of engine components! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CSF - Corporate Logo
ES#:
2992604
Mfg#:
3055
In Stock
$409.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3458268 - 022798tms01-09KT - Complete Universal Turner Baffled Oil Catch Can Kit - 10oz - A 4 chamber, baffled oil catch can complete with a universal mount and drain system! - Turner Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche
ECS Tuning recommends this product.

A 4 chamber, baffled oil catch can complete with a universal mount and drain system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3458268
Mfg#:
022798TMS01-09KT
In Stock
ON SALE! SAVE 15%
$299.99

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

$254.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3458264 - 022798tms01-07KT - Complete Turner Baffled Oil Catch Can Kit - 8oz - A 4 chamber, baffled oil catch can complete with a universal mount and drain system! - Turner Motorsport - Audi BMW Volkswagen Mercedes Benz MINI Porsche

A 4 chamber, baffled oil catch can complete with a universal mount and drain system! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3458264
Mfg#:
022798TMS01-07KT
Ships on Jul 1, 2026
Auto Notify
ON SALE! SAVE 15%
$329.99

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

$280.15 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4315269 - 006205LA09 - M52 M54 Silicone Radiator Hose Kit (Connectors included) - Retains OEM fitment with superior looks and durability. Connectors included! - ECS - BMW

Retains OEM fitment with superior looks and durability. Connectors included! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4315269
Mfg#:
006205LA09
In Stock
ON SALE! SAVE 30%
$194.99

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

$136.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2855687 - 001977ECS03A - ECS Aluminum Water Pump Pulley - Black - Finally, a durable, attractive water pump pulley that won't break! - ECS - BMW

Finally, a durable, attractive water pump pulley that won't break! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2855687
Mfg#:
001977ECS03A
In Stock
ON SALE!
$101.99

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

$96.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4508968 - 01KDCABLE - K+DCAN Cable - FTDI FT232RL Style OBD2 Cable - Connect to 1998-2018 BMW OBD2 systems with a laptop. - Bremmen Parts - BMW

Connect to 1998-2018 BMW OBD2 systems with a laptop. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Bremmen Parts - Corporate Logo
ES#:
4508968
Mfg#:
01KDCABLE
In Stock
$33.99

This product was last offered at the strikethrough price on
02-20-2026

$32.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4375397 - 1181228379812KT - Engine Mount - 75A Durometer (Pair) - Keep your engine securely mounted with our solid, non-fluid filled mounts. Can be sold individually (ES4335401) - ECS - BMW

Keep your engine securely mounted with our solid, non-fluid filled mounts. Can be sold individually (ES4335401) affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4375397
Mfg#:
1181228379812KT
In Stock
ON SALE! SAVE 22%
$193.99

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

$151.98 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#2764102 - MM0CULBK - Universal Oil Cooler - 19 Row - Black - 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#:
2764102
Mfg#:
MM0CULBK
In Stock
$536.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#4661006 - 023522la02KT - E46 325/330 Mid Section & Integrated X-Pipe - Drop 10 lbs and replace your midpipes/resonator for a free flowing X-Pipe to get a smoother sound and decreased back pressure! - Turner Motorsport - BMW

Drop 10 lbs and replace your midpipes/resonator for a free flowing X-Pipe to get a smoother sound and decreased back pressure! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
10X Entries For Our Spin To Win Sweepstakes!
Does not fit convertible models.

Brand:
Turner Motorsport - Corporate Logo
ES#:
4661006
Mfg#:
023522LA02KT
In Stock
ON SALE! SAVE 15%
$604.99

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

$514.51 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4686037 - 023536la01KT - E46 325/330 Valved Axle-Back Exhaust - Add a valved muffler and controller to your Turner midpipes to make a full valved catback! - Turner Motorsport - BMW

Add a valved muffler and controller to your Turner midpipes to make a full valved catback! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
For use with the Turner Motorsport 325/330 Mid-Section (ES#4661006)

Brand:
Turner Motorsport - Corporate Logo
ES#:
4686037
Mfg#:
023536LA01KT
Ships on Aug 3, 2026
Auto Notify
ON SALE! SAVE 15%
$656.98

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

$558.43 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2718367 - 002705ECS01 - Polyurethane Transmission mount Set - Street/Track - 80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane. - ECS - BMW

80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2718367
Mfg#:
002705ECS01
In Stock
ON SALE! SAVE 15%
$112.99

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

$96.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime 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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