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BMW E46 323Ci M52 2.5L

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BMW E46 323Ci M52 2.5L Performance Parts & Upgrades

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Kidney Grille - Left

ES#78562 - 51138208685 - Kidney Grille - Left - Left kidney grille - Genuine BMW - BMW

Left kidney grille For vehicles with production date up to 03/2003

Brand:
Genuine BMW - Corporate Logo
ES#:
78562
Mfg#:
51138208685
Ships on Oct 20, 2026
Auto Notify
$95.99 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 Into Our F80 M3 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

Adjustable Front Sway Bar End Links - 175-235mm

ES#4932371 - 059085LA01 - Adjustable Front Sway Bar End Links - 175-235mm - An essential performance upgrade for lowered suspensions or a heavy-duty OE replacement. - ECS - BMW MINI

An essential performance upgrade for lowered suspensions or a heavy-duty OE replacement. 10X Entries Into Our F80 M3 Sweepstakes
Please measure before purchasing. For lowered or custom applications. Will not fit factory suspension. 175-235mm length adjustment range.

Brand:
ECS - Corporate Logo
ES#:
4932371
Mfg#:
059085LA01
In Stock
$189.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

8 In. Twin Sprung Ceramic Disc Clutch And Flywheel Kit

ES#4749613 - XKBM20530-2B - 8 In. Twin Sprung Ceramic Disc Clutch And Flywheel Kit - The XClutch 8" 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 8" 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#:
4749613
Mfg#:
XKBM20530-2B
Ships in 2 Business Days
$1886.99 USD
Free Shipping

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 Into Our F80 M3 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

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! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Dinan - Corporate Logo
ES#:
3149054
Mfg#:
D403-0350
In Stock
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
07-29-2026

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

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 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 Into Our F80 M3 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

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

Bumper Tow Hook

ES#187123 - 72157203519 - Bumper Tow Hook - Used in both the front and rear bumpers - Genuine BMW - BMW MINI

Used in both the front and rear bumpers

Brand:
Genuine BMW - Corporate Logo
ES#:
187123
Mfg#:
72157203519
In Stock
$47.59 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Heavy Duty Rear Shock Mount Reinforcement Plate Set

ES#2642686 - 002478ECS02KT - Heavy Duty Rear Shock Mount Reinforcement Plate Set - Finally, a bolt on and go solution for convertible models. No hacking required! - ECS - BMW

Finally, a bolt on and go solution for convertible models. No hacking required! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2642686
Mfg#:
002478ECS02KT
In Stock
ON SALE! SAVE 25%
$95.98

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

$71.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

BMW S54 Swap High-Performance Radiator - E36/E46

ES#4668276 - 7211 - BMW S54 Swap High-Performance Radiator - E36/E46 - Cooling for your S54 Swap! - CSF - BMW

Cooling for your S54 Swap! 2X Entries Into Our F80 M3 Sweepstakes
For Vehicles with an S54 Engine Swap CARB certified for sale in all 50 states

Brand:
CSF - Corporate Logo
ES#:
4668276
Mfg#:
7211
EO#:
D-802-19
In Stock
$599.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Kidney Grille - Right

ES#78563 - 51138208686 - Kidney Grille - Right - Right kidney grille - Genuine BMW - BMW

Right kidney grille

Brand:
Genuine BMW - Corporate Logo
ES#:
78563
Mfg#:
51138208686
Back Ordered
Auto Notify
3% off MSRP

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

$95.74

This product was last offered at the strikethrough price on
08-27-2026

$92.97 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

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
Ships in 1-3 days
$249.99 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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