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BMW E46 323i M52 2.5L

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BMW E46 323i M52 2.5L Performance Parts & Upgrades

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ECS Performance Adjustable Coilover System - E46 Non-M

ES#4000579 - 029307ECS01 - ECS Performance Adjustable Coilover System - E46 Non-M - Improve the Comfort, Performance, and Style of your E46! - ECS - BMW
ECS Tuning recommends this product.

Improve the Comfort, Performance, and Style of your E46! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4000579
Mfg#:
029307ECS01
In Stock
ON SALE! SAVE 38%
$1199.99

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

$749.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Front Sway Bar End Links - 215-275mm

ES#4733391 - 053153LA01 - Adjustable Front Sway Bar End Links - 215-275mm - An essential performance upgrade for lowered suspensions or a durable heavy-duty OE replacement. Adjustable from 215mm-275mm. - ECS - BMW MINI

An essential performance upgrade for lowered suspensions or a durable heavy-duty OE replacement. Adjustable from 215mm-275mm. 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!

Brand:
ECS - Corporate Logo
ES#:
4733391
Mfg#:
053153LA01
In Stock
ON SALE! SAVE 20%
$179.99

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

$143.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

High Performance Water Pump - With O-Ring

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 6 Business Days
$204.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BR Series Coilover Suspension Kit

ES#3509398 - I-02-BR - BR Series Coilover Suspension Kit - Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! - BC Racing - BMW

Featuring 30 levels of adjustment and performance spring rates and valving that makes the BR Series perfect for both daily drivers and track warriors! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For coupe and sedan models only

Brand:
BC Racing - Corporate Logo
ES#:
3509398
Mfg#:
I-02-BR
In Stock
$1195.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit

ES#3677674 - 12131703228pKT - Performance Ignition Service Kit - Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and BAV Auto ignition coils - Assembled By ECS - BMW
ECS Tuning recommends this product.

Everything you need to service your ignition system including Bosch Platinum+4 spark plugs and BAV Auto ignition coils affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
3677674
Mfg#:
12131703228PKT
In Stock
ON SALE! SAVE 20%
$243.99

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

$195.02 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M52TU/M54 Heavy Duty Aluminum Expansion Tank Kit

ES#4690219 - 008363LA02 - M52TU/M54 Heavy Duty Aluminum Expansion Tank Kit - As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! - Turner Motorsport - BMW
ECS Tuning recommends this product.

As expansion tanks age, they are prone to cracking or even exploding. Replace your factory plastic coolant reservoir with a Turner Heavy Duty aluminum tank for durability and piece of mind! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4690219
Mfg#:
008363LA02
In Stock
ON SALE! SAVE 15%
$489.99

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

$416.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Flywheel & Sachs Clutch Kit

ES#2770848 - 000282ECS01KT - Performance Flywheel & Sachs Clutch Kit - Improve throttle response, acceleration and clutch feel - the perfect setup for daily-driven vehicles with up to 400lbs-ft of torque - ECS - BMW

Improve throttle response, acceleration and clutch feel - the perfect setup for daily-driven vehicles with up to 400lbs-ft of torque affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Eliminate factory dual-mass flywheel and self-adjusting-clutch without the chatter caused by some perform

Brand:
ECS - Corporate Logo
ES#:
2770848
Mfg#:
000282ECS01KT
In Stock
ON SALE!
$1048.99

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

$1017.52 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Clutch and Flywheel Kit

ES#4818391 - 048498LA01KT1 - ECS Performance Clutch and Flywheel Kit - Lightweight flywheel and upgraded clutch kit for improved throttle response, acceleration and clutch feel - the perfect setup for daily-driven vehicles with up to 400 Ft/lbs of torque. - ECS - BMW

Lightweight flywheel and upgraded clutch kit for improved throttle response, acceleration and clutch feel - the perfect setup for daily-driven vehicles with up to 400 Ft/lbs of torque. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4818391
Mfg#:
048498LA01KT1
Ships on Jul 10, 2026
Auto Notify
ON SALE! SAVE 11%
$1099.99

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

$979.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 10mm

ES#205204 - ECS#253KTWB - Wheel Spacer & Bolt Kit - 10mm - Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW - ECS - BMW

Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
205204
Mfg#:
ECS#253KTWB
In Stock
ON SALE! SAVE 15%
$174.59

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

$148.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 1 MA Performance Clutch Kit - With Single Mass Flywheel

ES#3220836 - MA-006-005 - Stage 1 MA Performance Clutch Kit - With Single Mass Flywheel - For moderately modified cars or performance oriented driving style - DKM - BMW

For moderately modified cars or performance oriented driving style affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For vehicles with 5 speed manual transmission

Brand:
DKM - Corporate Logo
ES#:
3220836
Mfg#:
MA-006-005
In Stock
$749.99 USD
This product is lifetime replacement eligible Lifetime Replacement

17" APEX ARC-8RT Square Wheel Set - Choose Your Finish!

ES#4905824 - ARC8RT179 - 17" APEX ARC-8RT Square Wheel Set - Choose Your Finish! - Shed weight and add style with APEX's new forged ARC-8RT wheels! 17x9" ET30 - APEX Wheels - BMW

Shed weight and add style with APEX's new forged ARC-8RT wheels! 17x9" ET30 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
APEX Wheels - Corporate Logo
ES#:
4905824
Mfg#:
ARC8RT179
Ships in 5 Business Days
Starting at $2396.00 USD
Customize
This product is lifetime replacement eligible Lifetime Replacement

Universal Short Shifter V3 - Self Centering - Black Reverse Button

ES#3659944 - IRPSS-3BCS - Universal Short Shifter V3 - Self Centering - Black Reverse Button - All of the great performance features of the original V3 short shifter, but now with a return to center spring! - IRP - Individual Racing Parts - BMW

All of the great performance features of the original V3 short shifter, but now with a return to center spring! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
IRP - Individual Racing Parts - Corporate Logo
ES#:
3659944
Mfg#:
IRPSS-3BCS
In Stock
$475.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Performance Adjustable Rear Control Arm Set

ES#2682175 - 002608ECS01 - ECS Tuning Performance Adjustable Rear Control Arm Set - Properly dial in rear camber. A must for all enthusiasts that care about handling and tire wear. - ECS - BMW

Properly dial in rear camber. A must for all enthusiasts that care about handling and tire wear. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2682175
Mfg#:
002608ECS01
Ships on Jun 30, 2026
Auto Notify
ON SALE! SAVE 25%
$449.99

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

$337.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Adjustable Camber Arm Set - Street

ES#3028370 - TSU9940B77 - Rear Adjustable Camber Arm Set - Street - With rubber bushing for comfort on the street with adjustability for street and track performance. Made in the USA! - Turner Motorsport - BMW
ECS Tuning recommends this product.

With rubber bushing for comfort on the street with adjustability for street and track performance. Made in the USA! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3028370
Mfg#:
TSU9940B77
In Stock
ON SALE! SAVE 10%
$499.99

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

$449.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B14 PSS Coilover System

ES#10798 - 47-249134 - B14 PSS Coilover System - Height adjustable suspension system with performance valving and application specific, progressive rate coil springs. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - BMW

Height adjustable suspension system with performance valving and application specific, progressive rate coil springs. World-famous Bilstein quality with a limited lifetime warranty! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Bilstein - Corporate Logo
ES#:
10798
Mfg#:
47-249134
In Stock
31% off MSRP

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

$1877.00

This product was last offered at the strikethrough price on
06-10-2026

$1299.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Lightweight Flywheel

ES#2730708 - 000282ECS01 - Performance Lightweight Flywheel - Improve throttle response and acceleration. For use with any E34 M5 clutch kit. - ECS - BMW

Improve throttle response and acceleration. For use with any E34 M5 clutch kit. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2730708
Mfg#:
000282ECS01
In Stock
ON SALE! SAVE 31%
$715.99

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

$490.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.

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

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