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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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Subframe Bushing/Reinforcement Combo Kit - Street

ES#4772524 - SBRC-E46-80A - Subframe Bushing/Reinforcement Combo Kit - Street - Includes polyurethane subframe bushings and subframe reinforcement plates. - Revshift - BMW

Includes polyurethane subframe bushings and subframe reinforcement plates.

Brand:
Revshift - Corporate Logo
ES#:
4772524
Mfg#:
SBRC-E46-80A
In Stock
$249.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Suspension Reinforcement Kit

ES#2718690 - 002478ECS01KT - Suspension Reinforcement Kit - Includes ECS RTAB limiter, rear shock tower reinforcement plates and BMW Strut tower plates. - Assembled By ECS - BMW

Includes ECS RTAB limiter, rear shock tower reinforcement plates and BMW Strut tower plates. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Assembled By ECS - Corporate Logo
ES#:
2718690
Mfg#:
002478ECS01KT
In Stock
ON SALE! SAVE 22%
$285.99

This product was last offered at the strikethrough price on
02-03-2026

$221.81 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ER Series Coilover Suspension Kit

ES#4430781 - I-02-ER - ER Series Coilover Suspension Kit - Get the high quality, unique features of the BC Racing "BR" and "RM" series with the added benefit of an external reservoir for superior performance! - BC Racing - BMW

Get the high quality, unique features of the BC Racing "BR" and "RM" series with the added benefit of an external reservoir for superior performance! For coupe and sedan models only

Brand:
BC Racing - Corporate Logo
ES#:
4430781
Mfg#:
I-02-ER
Back Ordered
$1935.00 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

Replacement Filter for Cold Air Intake - Priced Each

ES#3149054 - D403-0350 - Replacement Filter for Cold Air Intake - Priced Each - Replace your dirty, damaged, or lost filter - Dinan - BMW

Replace your dirty, damaged, or lost filter Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Dinan - Corporate Logo
ES#:
3149054
Mfg#:
D403-0350
Ships in 1 Business Day
11% off MSRP

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

$71.95

This product was last offered at the strikethrough price on
07-28-2026

$63.95 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Teflon Shifter Bushing Kit

ES#259536 - 2511-002 - Teflon Shifter Bushing Kit - Remove the slop from the shifter arm for improved shifter feel - even on brand-new cars! - ECS - BMW

Remove the slop from the shifter arm for improved shifter feel - even on brand-new cars! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
259536
Mfg#:
2511-002
In Stock
ON SALE! SAVE 25%
$74.99

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

$56.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Sway Bar End Link - Pair

ES#3420867 - 37160600022KT - Front Sway Bar End Link - Pair - Shorter end link for your lowered BMW - 130mm Length - CTR - BMW

Shorter end link for your lowered BMW - 130mm Length

Brand:
CTR - Corporate Logo
ES#:
3420867
Mfg#:
37160600022KT
In Stock
$45.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Shark Injector Performance Software

ES#3138953 - N4MS42 - 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: +15HP +12LB/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: +15HP +12LB/FT gains!

Brand:
Shark Injector - Corporate Logo
ES#:
3138953
Mfg#:
N4MS42
In Stock
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

WPC-Treated Race Series Main Bearing Set - M20/M50/M52/M54/S54

ES#4845662 - M5X-WPC-MB - WPC-Treated Race Series Main Bearing Set - M20/M50/M52/M54/S54 - The strongest and smoothest bearings for your BMW, featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and enhanced durability. - Turner Motorsport - BMW

The strongest and smoothest bearings for your BMW, featuring heavy-duty ACL "Duraglide" bearing shells treated by WPC for reduced friction and enhanced durability. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4845662
Mfg#:
M5X-WPC-MB
In Stock
ON SALE! SAVE 10%
$520.99

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

$468.89 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

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 Aug 25, 2026
$367.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Chassis Mount Short Throw Shifter

ES#4839952 - 049570la01KT - Chassis Mount Short Throw Shifter - The ULTIMATE shifter upgrade for your BMW! Experience more precise throws, less shift lever travel, and an all-around transformation in your shifting experience. - Turner Motorsport - BMW

The ULTIMATE shifter upgrade for your BMW! Experience more precise throws, less shift lever travel, and an all-around transformation in your shifting experience. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4839952
Mfg#:
049570LA01KT
Ships on Nov 3, 2026
Auto Notify
ON SALE! SAVE 20%
$457.99

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

$366.39 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Turner Performance Pedal Set - Manual Transmission

ES#3024676 - TMS300502 - Turner Performance Pedal Set - Manual Transmission - Black anodized aluminum; designed with the enthusiast driver in mind. The right grip & slip where you need it. - Turner Motorsport - BMW

Black anodized aluminum; designed with the enthusiast driver in mind. The right grip & slip where you need it. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3024676
Mfg#:
TMS300502
In Stock
ON SALE! SAVE 15%
$212.99

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

$181.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

9 In. Twin Solid Organic Disc Clutch And Flywheel Kit

ES#4749987 - XKBM23589-2G - 9 In. Twin Solid Organic Disc 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 890 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 890 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#:
4749987
Mfg#:
XKBM23589-2G
Ships in 2 Business Days
$1808.99 USD
Free Shipping

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