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Audi B6 A4 Quattro 1.8T

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Audi B6 A4 Quattro 1.8T Performance Parts & Upgrades

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Rear Special Active Shock Absorber - Priced Each

ES#3560585 - 80451246 - Rear Special Active Shock Absorber - Priced Each - Superior handling without compromising ride quality - Koni - Audi

Superior handling without compromising ride quality

Brand:
Koni - Corporate Logo
ES#:
3560585
Mfg#:
80451246
In Stock
ON SALE! SAVE 20%
$146.99

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

$117.04 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Supertech Stainless Intake Valve Kit

ES#3647524 - ST-AIVN-1103KT - Supertech Stainless Intake Valve Kit - Stock sized valve head diameter, factory triple groove keeper setup - Includes Supertech valves and IE valve seals - Assembled By ECS - Audi Volkswagen

Stock sized valve head diameter, factory triple groove keeper setup - Includes Supertech valves and IE valve seals 10X Entries For Our 25th Anniversary Sweepstakes!
*Existing factory triple-groove valve keepers are to be reused*

Brand:
Assembled By ECS - Corporate Logo
ES#:
3647524
Mfg#:
ST-AIVN-1103KT
Ships in 6 Business Days
$373.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Performance Kevlar Reinforced Accessory Belt

ES#3677913 - 06B903137D - Performance Kevlar Reinforced Accessory Belt - Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. - ECS - Audi
ECS Tuning recommends this product.

Our Red Kevlar accessory Belts are both an aesthetic improvement and a performance alternative to a traditional belt. 10X Entries For Our 25th Anniversary Sweepstakes!

Up to VIN 8E-4-191000, split is in the 2004 model year

Brand:
ECS - Corporate Logo
ES#:
3677913
Mfg#:
06B903137D
Ships in 5 Business Days
$50.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Combination Parking Brake Caliper Rear Brake Kit

Features 12.19" slotted rotors & red calipers - Provides balanced brake performance and style to compliment front big brake kits!

Brand:
Wilwood - Corporate Logo
ES#:
3701667
Mfg#:
140-14591-R
Ships in 10 Business Days
$1114.99 USD
This product is lifetime replacement eligible Lifetime Replacement

Rear EP24 "Enthusiast Performance" Brake Pad Set

ES#4739103 - EP24-340 - Rear EP24 "Enthusiast Performance" Brake Pad Set - This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. - ECS - Audi Volkswagen

This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4739103
Mfg#:
EP24-340
In Stock
ON SALE! SAVE 62%
$116.99

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

$44.48 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 2, Driveshaft Center Support Bearing Carrier & Rear Differential Mount

ES#4751081 - ECSB6A4RS4CCEBKT - RA4 240mm Clutch Conversion Kit - Stage 2, Driveshaft Center Support Bearing Carrier & Rear Differential Mount - Lightweight flywheel with the RS4 pressure plate and disc - Enthusiast Bundles - Audi

Lightweight flywheel with the RS4 pressure plate and disc Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One!

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751081
Mfg#:
ECSB6A4RS4CCEBKT
Ships on Oct 5, 2026
Auto Notify
ON SALE! SAVE 17%
$1331.62

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

$1099.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

Audi B6/B7 A4 Solo-Werks S1 Coilovers

ES#2777315 - s1au002 - Audi B6/B7 A4 Solo-Werks S1 Coilovers - Set your vehicle low and tight for optimal performance - Solo-Werks - Audi

Set your vehicle low and tight for optimal performance Fits Avant models only. Lowering front: 1.4" - 2.4", rear: 1.4" - 2.4"

Brand:
Solo-Werks - Corporate Logo
ES#:
2777315
Mfg#:
S1AU002
Ships on Oct 9, 2026
$549.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST X Performance Coilover System - Fixed Damping

ES#4056701 - 13210058 - ST X Performance Coilover System - Fixed Damping - Average lowering of 1.4'' to 2.4'' front and 1.4'' to 2.6'' rear. - Suspension Techniques - Audi

Average lowering of 1.4'' to 2.4'' front and 1.4'' to 2.6'' rear. Avant models only

Brand:
Suspension Techniques - Corporate Logo
ES#:
4056701
Mfg#:
13210058
Back Ordered
$1089.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ST X Performance Coilover System - Fixed Damping

ES#4056704 - 13210030 - ST X Performance Coilover System - Fixed Damping - Average lowering of 1.4'' to 2.4'' front and 1.4'' to 2.6'' rear. - Suspension Techniques - Audi

Average lowering of 1.4'' to 2.4'' front and 1.4'' to 2.6'' rear. Sedan & Cabriolet models only

Brand:
Suspension Techniques - Corporate Logo
ES#:
4056704
Mfg#:
13210030
Back Ordered
$1089.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

JE Forged 2.0L Stroker Piston Set - 9.5:1 CR

ES#4000992 - JE-PVA-2 - JE Forged 2.0L Stroker Piston Set - 9.5:1 CR - Takes 1.8L 06A engine to 2.0L (2008cc), by increasing the stroke and bore of the engine - JE Piston - Audi Volkswagen

Takes 1.8L 06A engine to 2.0L (2008cc), by increasing the stroke and bore of the engine Requires block machine work (+2mm overbore) - To be used in conjunction with IE 2.0L Stroker Crank (IESKVA6) and 144x20 connecting rods

Brand:
JE Piston - Corporate Logo
ES#:
4000992
Mfg#:
JE-PVA-2
Ships in 4 Business Days
$1085.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Fuel Rail Spacer Kit

ES#3159 - ECS#152-2 - Fuel Rail Spacer Kit - Includes the necessary parts to raise your fuel rail for larger injectors - ECS - Audi Volkswagen

Includes the necessary parts to raise your fuel rail for larger injectors 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
3159
Mfg#:
ECS#152-2
In Stock
ON SALE! SAVE 25%
$30.99

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

$23.24 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2.0T Coil Pack Conversion Kit - Stage 2

ES#2713407 - 002598ECS19KT - 2.0T Coil Pack Conversion Kit - Stage 2 - Includes wrinkle red conversion plate -w- red 2.0T coils and red hold down kit - ECS - Audi Volkswagen

Includes wrinkle red conversion plate -w- red 2.0T coils and red hold down kit 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
2713407
Mfg#:
002598ECS19KT
In Stock
ON SALE!
$366.99

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

$355.98 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Race Exhaust Camshaft

ES#4361432 - IECVA1-1 - IE Race Exhaust Camshaft - IE Race Exhaust Camshaft for 500+ Horsepower Builds! - Integrated Engineering - Audi Volkswagen

IE Race Exhaust Camshaft for 500+ Horsepower Builds! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4361432
Mfg#:
IECVA1-1
Ships in 2 Business Days
$349.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

IE Race Intake Camshaft

ES#4361431 - IECVA1-2 - IE Race Intake Camshaft - IE Race Intake Camshaft for 500+ Horsepower Builds! - Integrated Engineering - Audi Volkswagen

IE Race Intake Camshaft for 500+ Horsepower Builds! 5X Entries For Our 25th Anniversary Sweepstakes!

Brand:
Integrated Engineering - Corporate Logo
ES#:
4361431
Mfg#:
IECVA1-2
Ships in 4 Business Days
$349.99 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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