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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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Wheel Stud Conversion Kit - Full Set

ES#2836721 - 001467ecs03KT - 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 For Our 25th Anniversary Sweepstakes!
Ideal for vehicles with up to 10mm wheel spacers or those without spacers

Brand:
ECS - Corporate Logo
ES#:
2836721
Mfg#:
001467ECS03KT
In Stock
ON SALE! SAVE 10%
$194.99

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

$175.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Rear Adjustable Length Sway Bar End Link Set

ES#3028364 - TSU9913RS2 - Rear Adjustable Length Sway Bar End Link Set - Needed when lowering your vehicle to eliminate sway bar binding - Turner Motorsport - BMW

Needed when lowering your vehicle to eliminate sway bar binding 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
3028364
Mfg#:
TSU9913RS2
In Stock
$305.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Ignition Service Kit

ES#4608633 - D650-0007KT - Performance Ignition Service Kit - Everything you need to service your ignition system, featuring Dinan performance ignition Coils - Dinan - BMW

Everything you need to service your ignition system, featuring Dinan performance ignition Coils Call In Or Chat For Best Price! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Dinan - Corporate Logo
ES#:
4608633
Mfg#:
D650-0007KT
In Stock
$275.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Exact-Fit Stainless Steel Brake Lines - Complete Kit

ES#252665 - E46EXKIT - Exact-Fit Stainless Steel Brake Lines - Complete Kit - DOT-compliant kit to improve pedal feel in your vehicle. - ECS - BMW

DOT-compliant kit to improve pedal feel in your vehicle. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
252665
Mfg#:
E46EXKIT
In Stock
ON SALE!
$203.99

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

$193.79 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Brass Clutch Fork Pivot Pin

ES#2992391 - 013236ECS01A - ECS Performance Brass Clutch Fork Pivot Pin - Improved durability and smooth, squeak-free shifts - an essential upgrade for every manual transmission equipped BMW! - ECS - BMW

Improved durability and smooth, squeak-free shifts - an essential upgrade for every manual transmission equipped BMW! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2992391
Mfg#:
013236ECS01A
In Stock
ON SALE! SAVE 25%
$56.99

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

$42.74 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Magnum FORCE Pro 5R Stage 2 Air Intake System

ES#2532708 - 54-20442 - Magnum FORCE Pro 5R Stage 2 Air Intake System - Excellent sound & power - the ultimate performance intake! +6hp & +12lb/ft! - AFE - BMW

Excellent sound & power - the ultimate performance intake! +6hp & +12lb/ft! CARB certified for sale in all 50 states

Brand:
AFE - Corporate Logo
ES#:
2532708
Mfg#:
54-20442
EO#:
D-550-38
In Stock
20% off MSRP

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

$483.99

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

$387.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Tuning Front & Rear Sway Bar Kit

ES#2831192 - 007277ecs01KT - ECS Tuning Front & Rear Sway Bar Kit - Eliminate excessive body roll, improve handling, and gain a more engaging driving experience. Includes matched front (27mm) and rear (21mm) sway bars with self-lubricating polyurethane bushings. - ECS - BMW

Eliminate excessive body roll, improve handling, and gain a more engaging driving experience. Includes matched front (27mm) and rear (21mm) sway bars with self-lubricating polyurethane bushings. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2831192
Mfg#:
007277ECS01KT
In Stock
ON SALE! SAVE 10%
$556.99

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

$501.29 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST XTA Performance Coilover System - Adjustable Damping

ES#2800204 - 18220821KT - ST XTA Performance Coilover System - Adjustable Damping - Featuring adjustable damping and aluminum adjustable camber plates. Average lowering of 1.6-3.1"F, 0.8-2.0"R. - Suspension Techniques - BMW

Featuring adjustable damping and aluminum adjustable camber plates. Average lowering of 1.6-3.1"F, 0.8-2.0"R.

Brand:
Suspension Techniques - Corporate Logo
ES#:
2800204
Mfg#:
18220821KT
Back Ordered
$1649.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Polyurethane Transmission mount Set - Street/Track

ES#2718367 - 002705ECS01 - Polyurethane Transmission mount Set - Street/Track - 80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane. - ECS - BMW

80A durometer rating - perfect for aggressive enthusiast driving. Constructed of 304 stainless steel with bonded and constrained polyurethane. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2718367
Mfg#:
002705ECS01
In Stock
ON SALE! SAVE 15%
$115.99

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

$98.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

E46 Sedan Carbon Fiber High Kick Spoiler

ES#4500426 - 046636LA01 - E46 Sedan Carbon Fiber High Kick Spoiler - A beautiful high kick carbon spoiler that pays homage to CSL design while flowing perfectly with E46 Sedan body lines! - Turner Motorsport - BMW

A beautiful high kick carbon spoiler that pays homage to CSL design while flowing perfectly with E46 Sedan body lines! 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Turner Motorsport - Corporate Logo
ES#:
4500426
Mfg#:
046636LA01
Ships on Dec 11, 2026
Auto Notify
ON SALE!
$431.99

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

$427.76 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Gloss Black Front Grille - Set

ES#4900356 - BM-0030-GB - Gloss Black Front Grille - Set - A high-quality, OEM-fit upgrade designed to enhance your BMWs front-end with a sleek, aggressive gloss black finish - AUTOTECKNIC - BMW

A high-quality, OEM-fit upgrade designed to enhance your BMW’s front-end with a sleek, aggressive gloss black finish For pre-Facelift Models only!

Brand:
AUTOTECKNIC - Corporate Logo
ES#:
4900356
Mfg#:
BM-0030-GB
In Stock
$79.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Aluminum Radiator

ES#2764251 - MMRADE3692 - Performance Aluminum Radiator - Upgrade your cooling - lifetime warranty! - Mishimoto - BMW

Upgrade your cooling - lifetime warranty!

Brand:
Mishimoto - Corporate Logo
ES#:
2764251
Mfg#:
MMRADE3692
In Stock
$360.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 5mm

ES#205203 - ECS#252KTWB - Wheel Spacer & Bolt Kit - 5mm - 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 For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
205203
Mfg#:
ECS#252KTWB
In Stock
ON SALE! SAVE 20%
$122.99

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

$98.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

M52TU/M54 Heavy-Duty Expansion Tank With Mechanical Thermostat Conversion Kit & Silicone Radiator Hoses

ES#4876697 - 008363LA02EB1KT - M52TU/M54 Heavy-Duty Expansion Tank With Mechanical Thermostat Conversion Kit & Silicone Radiator Hoses - The ULTIMATE cooling upgrade for your BMW! Experience increased cooling system capability and durability. - Enthusiast Bundles - BMW

The ULTIMATE cooling upgrade for your BMW! Experience increased cooling system capability and durability. Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4876697
Mfg#:
008363LA02EB1KT
Ships on Oct 9, 2026
ON SALE! SAVE 24%
$1055.95

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

$799.04 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.

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