Shop Our Clearance Sale - Up To 80% Off FREE SHIPPING on Orders $49+ *exclusions apply

Menu

Call Us330-331-2003 ChatLive Chat Text Us!
0 Shopping Cart
Your Vehicle Clear

BMW E46 323i M52 2.5L

    • Audi
    • BMW
    • Mercedes Benz
    • MINI
    • Porsche
    • Volkswagen

Saved Vehicles

My Vehicles
You currently have no stored vehicles.

Recent Vehicles

Recent Vehicles Manage Vehicles

You currently have no recent vehicles.

We'll automatically keep fully selected vehicles here for your convenience.

Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
0
Call Us330-331-2003 ChatLive Chat Text Us!
Track My Order View Order History Submit a Return Contact Us Wholesale Information Lifetime Replacement Returns and Warranty Information
Cancel
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle BMW E46 323i M52 2.5L
Your Vehicle BMW E46 323i M52 2.5L
Change Clear

BMW E46 323i M52 2.5L Performance Parts & Upgrades

Sort By
Filter By
Return to Top

Fog Light Inserts - gloss black

ES#2817048 - E46m3abshmfogins - Fog Light Inserts - gloss black - Give your BMW a truly unique style - ECS - BMW

Give your BMW a truly unique style 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2817048
Mfg#:
E46M3ABSHMFOGINS
In Stock
ON SALE! SAVE 25%
$103.99

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

$77.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Stud Conversion Kit - Half Set

ES#2836726 - 001467ecs07kt - Wheel Stud Conversion Kit - Half Set - Make wheel changes faster and easier, enough to convert one axle - ECS - BMW

Make wheel changes faster and easier, enough to convert one axle 10X Entries Into Our F80 M3 Sweepstakes
Ideal for vehicles with up to 30mm wheel spacers. May also be used with smaller spacers or without spacer

Brand:
ECS - Corporate Logo
ES#:
2836726
Mfg#:
001467ECS07KT
In Stock
ON SALE! SAVE 10%
$100.99

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

$90.89 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bolt-on Wheel Spacer & Bolt Kit - 30mm

ES#3101030 - 1058ecs04-30BKT - Bolt-on Wheel Spacer & Bolt Kit - 30mm - 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 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3101030
Mfg#:
1058ECS04-30BKT
In Stock
$190.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

CP-Carrillo Connecting Rod Set M5X Pro-Xtreme

ES#4759044 - CAR-CRS-S52-XT - CP-Carrillo Connecting Rod Set M5X Pro-Xtreme - Upgrade Your M5x Engine With CP-Carrillo Rods Today! 135mm Rods - 5150 Autosport - BMW

Upgrade Your M5x Engine With CP-Carrillo Rods Today! 135mm Rods

Brand:
5150 Autosport - Corporate Logo
ES#:
4759044
Mfg#:
CAR-CRS-S52-XT
Ships in 3 Business Days
$2099.99 USD
Free Shipping
on orders $49 and up

Front M3 CSL Sway Bar - 30.8mm

ES#2966719 - 31352282655 - Front M3 CSL Sway Bar - 30.8mm - Get the aggressive handling of the M3 CSL - Genuine European BMW - BMW

Get the aggressive handling of the M3 CSL

Brand:
Genuine European BMW - Corporate Logo
ES#:
2966719
Mfg#:
31352282655
Ships on Apr 26, 2027
$699.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 1 Clutch and flywheel Kit - FX100

ES#3622189 - 03CM1-HD00-AK - Stage 1 Clutch and flywheel Kit - FX100 - Upgraded clutch plate with organic disc and light weight flywheel - Clutch Masters - BMW

Upgraded clutch plate with organic disc and light weight flywheel For vehicles with 5-speed transmission only

Brand:
Clutch Masters - Corporate Logo
ES#:
3622189
Mfg#:
03CM1-HD00-AK
Ships in 3 Business Days
$1044.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacers - 5mm

ES#11296 - ECS#252KT - Wheel Spacers - 5mm - Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW / MINI - ECS - BMW MINI

Aircraft grade 6061-T6 aluminum spacers designed for precise fitment on your BMW / MINI 10X Entries Into Our F80 M3 Sweepstakes

Recommend 12x1.5x33mm conical bolts in addition to these ECS spacers

Brand:
ECS - Corporate Logo
ES#:
11296
Mfg#:
ECS#252KT
In Stock
ON SALE! SAVE 25%
$105.99

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

$79.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front Performance Sway Bar Kit

Eliminate excessive body roll, improve handling, and gain a more engaging driving experience. 30mm Front

Brand:
Hotchkis - Corporate Logo
ES#:
3162232
Mfg#:
22825F
Back Ordered
$404.99 USD
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

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 4 Business Days
$503.99 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

Transmission Mount Bushing - Street

ES#4617285 - PFF5-4655 - Transmission Mount Bushing - Street - Polyurethane mounts secure your transmission for crisp, mis-shift-free gear changes. - Powerflex - BMW

Polyurethane mounts secure your transmission for crisp, mis-shift-free gear changes.

Brand:
Powerflex - Corporate Logo
ES#:
4617285
Mfg#:
PFF5-4655
In Stock
$118.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Wheel Stud Conversion Kit - full set

ES#2807082 - PRACH5KT2 - Wheel Stud Conversion Kit - full set - Make wheel changes faster and easier, enough to convert both axles - ECS - BMW

Make wheel changes faster and easier, enough to convert both axles 10X Entries Into Our F80 M3 Sweepstakes
Ideal for vehicles with up to 20mm wheel spacers. May also be used with smaller spacers or without spacer

Brand:
ECS - Corporate Logo
ES#:
2807082
Mfg#:
PRACH5KT2
In Stock
ON SALE! SAVE 10%
$191.99

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

$172.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

20mm Wheel Spacers - Black (Pair)

ES#3021137 - TWH9905020BLACK - 20mm Wheel Spacers - Black (Pair) - Lightweight wheel spacers with a machined tab for easy removal - Turner Motorsport - BMW MINI

Lightweight wheel spacers with a machined tab for easy removal 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Turner Motorsport - Corporate Logo
ES#:
3021137
Mfg#:
TWH9905020BLACK
In Stock
ON SALE! SAVE 28%
$124.99

This product was last offered at the strikethrough price on
05-14-2026

$90.50 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.

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings