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Audi A4 Performance Parts & Upgrades

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KW Street Comfort Coilover Kit

Street Comfort coilovers offer sport handling with adjustable rebound damping For vehicles without electronic damping - Fits avant models only

Brand:
KW Suspension - Corporate Logo
ES#:
3427390
Mfg#:
18010078KT
Ships in 5 Business Days
$2514.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 12.5mm - With Dust Cap - with Black Conical Seat Bolts

ES#2863234 - 002403ECS02AKT4 - Wheel Spacer & Bolt Kit - 12.5mm - With Dust Cap - with Black Conical Seat Bolts - Includes everything you need to install spacers on two wheels - ECS - Audi Volkswagen

Includes everything you need to install spacers on two wheels 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
2863234
Mfg#:
002403ECS02AKT4
In Stock
ON SALE! SAVE 20%
$156.99

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

$125.59 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover Kit - With EDC Deactivation Kit

ES#2619582 - 10210097 - V1 Series Coilover Kit - With EDC Deactivation Kit - Variant 1 coilovers offer the best balance between sporty driving and comfort - For models with Electronic Dampening Control - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort - For models with Electronic Dampening Control Fits sedan models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619582
Mfg#:
10210097
Back Ordered
$2504.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V1 Series Coilover Kit - With EDC Deactivation Kit

ES#2619578 - 10210099 - V1 Series Coilover Kit - With EDC Deactivation Kit - Variant 1 coilovers offer the best balance between sporty driving and comfort - KW Suspension - Audi

Variant 1 coilovers offer the best balance between sporty driving and comfort Fits avant models with factory EDC. Range of lowering is 0.8-1.5" in the front and 0.4-1.5" in the rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2619578
Mfg#:
10210099
Back Ordered
$2504.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Complete Drivetrain Mount Insert Kit

ES#3194637 - 019208ecs01KT1 - Complete Drivetrain Mount Insert Kit - Decrease slop and increase drivetrain rigidity and response! - ECS - Audi

Decrease slop and increase drivetrain rigidity and response! 10X Entries Into Our F80 M3 Sweepstakes

Does not fit manual transmission models

Brand:
ECS - Corporate Logo
ES#:
3194637
Mfg#:
019208ECS01KT1
In Stock
ON SALE! SAVE 15%
$242.99

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

$206.54 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Endurance Clutch Kit

ES#3098856 - 205hdofedmKT - Stage 2 Endurance Clutch Kit - Designed for track use while still streetable. Conservatively rated at 325ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for track use while still streetable. Conservatively rated at 325ft/lbs. Works with stock dual mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098856
Mfg#:
205HDOFEDMKT
Ships in 2 Business Days
$618.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Stainless 2.5" Downpipe

ES#3175307 - 251229 - Performance Stainless 2.5" Downpipe - High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust - Techtonics Tuning - Audi

High flow, stainless downpipe kit to be used with 2.5" aftermarket exhaust Fits quattro manual transmission models only - To be used with 2.5" aftermarket exhaust system

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175307
Mfg#:
251229
Ships in 8 Business Days
$275.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Single Mass Flywheel - (17 Lb) - Billet Steel

ES#3638597 - SBCF0502 - Single Mass Flywheel - (17 Lb) - Billet Steel - Upgrade your flywheel to handle higher horsepower/torque. Made from billet steel! - South Bend Clutch - Audi Volkswagen

Upgrade your flywheel to handle higher horsepower/torque. Made from billet steel! Recommended to be used with a Southbend Clutch Kit for best results

Brand:
South Bend Clutch - Corporate Logo
ES#:
3638597
Mfg#:
SBCF0502
Ships in 2 Business Days
$618.51 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B16 PSS10 Suspension System

ES#4370310 - 48-275071 - Bilstein B16 PSS10 Suspension System - Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Height adjustable suspension system offering adjustable compression and rebound to dial in for competition, comfort, or anywhere in between. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
Without Electronic Suspension

Brand:
Bilstein - Corporate Logo
ES#:
4370310
Mfg#:
48-275071
Ships in 4 Business Days
31% off MSRP

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

$3573.00

This product was last offered at the strikethrough price on
11-05-2026

$2473.00 USD
Free Shipping

RA4 240mm Clutch Conversion Kit - Stage 1

ES#5485 - RA4S1-STEEL - RA4 240mm Clutch Conversion Kit - Stage 1 - ECS RA4 Lightweight Flywheel with the Audi S4 clutch kit - ECS - Audi Volkswagen

ECS RA4 Lightweight Flywheel with the Audi S4 clutch kit 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
5485
Mfg#:
RA4S1-STEEL
Ships in 4 Business Days
ON SALE!
$846.99

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

$821.58 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 10mm With Conical Seat Bolts

ES#3568762 - 002411ecs02aKT8 - Wheel Spacer & Bolt Kit - 10mm With Conical Seat Bolts - Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels - ECS - Audi

Complete kit for two wheels, comes with everything you need to install spacers on your aftermarket wheels 10X Entries Into Our F80 M3 Sweepstakes
Fits most aftermarket wheels that use conical seat wheel bolts

Brand:
ECS - Corporate Logo
ES#:
3568762
Mfg#:
002411ECS02AKT8
In Stock
ON SALE! SAVE 15%
$160.99

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

$136.84 USD
Free Shipping
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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