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BMW E46 325i M54 2.5L

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BMW E46 325i M54 2.5L Performance Engine & Drivetrain Parts

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E46 M52 M54 Silicone Radiator Hose Kit

ES#4142065 - 006205LA01 - E46 M52 M54 Silicone Radiator Hose Kit - Kit includes upper and lower radiator hoses without connections. Silicone hose upgrade and connectors kit ES4315269. - ECS - BMW

Kit includes upper and lower radiator hoses without connections. Silicone hose upgrade and connectors kit ES4315269. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4142065
Mfg#:
006205LA01
Ships on Sep 28, 2026
Auto Notify
ON SALE! SAVE 25%
$160.99

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

$120.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Radiator

ES#2999054 - MMRAD-E46-323 - Performance Aluminum Radiator - Fully brazed two-row aluminum core with TIG-welded end tanks - Mishimoto - BMW

Fully brazed two-row aluminum core with TIG-welded end tanks

Brand:
Mishimoto - Corporate Logo
ES#:
2999054
Mfg#:
MMRAD-E46-323
Ships in 3 Business Days
$503.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Clutch and flywheel Kit - FX200

ES#3622204 - 03CM1-HDKV-AK - Stage 2 Clutch and flywheel Kit - FX200 - Upgraded clutch plate, Kevlar disc and light weight aluminum flywheel - Clutch Masters - BMW

Upgraded clutch plate, Kevlar disc and light weight aluminum flywheel For vehicles with production date up to 03/2003

Brand:
Clutch Masters - Corporate Logo
ES#:
3622204
Mfg#:
03CM1-HDKV-AK
Ships in 6 Business Days
$1253.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 3+ FX350 Clutch and flywheel Kit

ES#3622201 - 03CM1-HDFF-AK - Stage 3+ FX350 Clutch and flywheel Kit - Features the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc - 110% increased holding capacity and light weight flywheel - Clutch Masters - BMW

Features the Power Plus I Pressure Plate with Clutch Masters New Formula Button disc - 110% increased holding capacity and light weight flywheel For vehicles with production date up to 03/2003

Brand:
Clutch Masters - Corporate Logo
ES#:
3622201
Mfg#:
03CM1-HDFF-AK
Ships in 6 Business Days
$1193.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Turner Baffled Oil Catch Can - Standard Flow 8oz

ES#4369815 - 022798TMS01-02 - Turner Baffled Oil Catch Can - Standard Flow 8oz - A 4 chamber, baffled oil catch can with a bottom drain option - Turner Motorsport - BMW

A 4 chamber, baffled oil catch can with a bottom drain option 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4369815
Mfg#:
022798TMS01-02
In Stock
ON SALE! SAVE 25%
$218.99

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

$164.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Transmission Mount - Priced Each

ES#41849 - 22322282340 - Transmission Mount - Priced Each - Secure the rear of the transmission to the crossmember - Genuine BMW - BMW

Secure the rear of the transmission to the crossmember

Brand:
Genuine BMW - Corporate Logo
ES#:
41849
Mfg#:
22322282340
Ships in 1-2 days
8% off MSRP

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

$92.25

This product was last offered at the strikethrough price on
08-05-2026

$84.87 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Clutch & Flywheel Kit & Polyurethane Transmission Mount Set

ES#4876683 - 048498LA01EBKT - Performance Clutch & Flywheel Kit & Polyurethane Transmission Mount Set - Receive a discounted performance polyurethane transmission mount set alongside your new performance clutch and flywheel kit! - Enthusiast Bundles - BMW

Receive a discounted performance polyurethane transmission mount set alongside your new performance clutch and flywheel kit! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876683
Mfg#:
048498LA01EBKT
In Stock
ON SALE! SAVE 19%
$1236.99

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

$999.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Helical Limited Slip Differential - Final Ratio 3.07 or Less

ES#2795230 - MF-TRS-05E46 - Helical Limited Slip Differential - Final Ratio 3.07 or Less - Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. - Team MFactory - BMW

Allows for traction at all times by providing the most power to the wheel with more grip. Unlike plate differentials (1,1.5,2-way) helical LSDs can supply different spin rates to each axle, like when cornering. For vehicles with a manual transmission

Brand:
Team MFactory - Corporate Logo
ES#:
2795230
Mfg#:
MF-TRS-05E46
In Stock
$999.99 USD
Free Shipping

Proton Plus Series Nitrous System

ES#4044087 - NEX20421 - Proton Plus Series Nitrous System - Choose your bottle size to add up to 150hp with this EFI nitrous kit. - Nitrous Express - BMW

Choose your bottle size to add up to 150hp with this EFI nitrous kit.

Brand:
Nitrous Express - Corporate Logo
ES#:
4044087
Mfg#:
NEX20421
In Stock
ON SALE!
Starting at $493.99 USD
Customize
Free Shipping
on orders $49 and up

Turner Baffled Oil Catch Can - Standard Flow 6oz

ES#4369814 - 022798TMS01-01 - Turner Baffled Oil Catch Can - Standard Flow 6oz - A 4 chamber, baffled oil catch can with a bottom drain option - Turner Motorsport - BMW

A 4 chamber, baffled oil catch can with a bottom drain option 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4369814
Mfg#:
022798TMS01-01
In Stock
ON SALE! SAVE 25%
$218.99

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

$164.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Magnum FORCE Pro 5R Stage 1 Air Intake System

ES#264140 - 54-10451 - Magnum FORCE Pro 5R Stage 1 Air Intake System - Excellent sound & power - the ultimate performance intake! +20hp & +27lb/ft! - AFE - BMW

Excellent sound & power - the ultimate performance intake! +20hp & +27lb/ft! CARB certified for sale in all 50 states

Brand:
AFE - Corporate Logo
ES#:
264140
Mfg#:
54-10451
EO#:
D-550-38
In Stock
ON SALE! SAVE 10%
$435.00

This product was last offered at the strikethrough price on
08-03-2026

$391.50 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

9 In. Twin Solid Ceramic Clutch And Flywheel Kit

ES#4750141 - XKBM23589-2E - 9 In. Twin Solid Ceramic Clutch And Flywheel Kit - The XClutch 9" Twin Disc Clutch offers a lightweight design for improved throttle response combined with a high torque capacity, making it ideal for racing applications. Rated for 1350 ft-lbs! - XClutch - BMW

The XClutch 9" Twin Disc Clutch offers a lightweight design for improved throttle response combined with a high torque capacity, making it ideal for racing applications. Rated for 1350 ft-lbs! For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft
For Vehicles with 5-Speed Transmission and 10 Spline Input Shaft

Brand:
XClutch - Corporate Logo
ES#:
4750141
Mfg#:
XKBM23589-2E
Ships in 2 Business Days
$1924.99 USD
Free Shipping

M52 M54 Cylinder Head - Complete

ES#2918697 - 11127514540-2 - M52 M54 Cylinder Head - Complete - Complete cylinder head with guides, seats, valves, & springs - AMC - BMW
ECS Tuning recommends this product.

Complete cylinder head with guides, seats, valves, & springs

Brand:
AMC - Corporate Logo
ES#:
2918697
Mfg#:
11127514540-2
Special Order: No Guaranteed ETA
$1864.99 USD

Performance Air Intake System

ES#11537 - 57-1002 - Performance Air Intake System - Great sound and increase power with this K&N intake kit - K&N - BMW

Great sound and increase power with this K&N intake kit CARB certified for sale in all 50 states

Brand:
K&N - Corporate Logo
ES#:
11537
Mfg#:
57-1002
EO#:
D-269-31
Ships on Sep 2, 2026
$367.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Engine & Drivetrain Parts

Worn mounts, bushings, and other drivetrain components rob performance. Replace or upgrade your drivetrain with our extensive catalog of mounts, bushings, clutch kits, and more.

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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