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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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Billet Boost Tap Kit

ES#3221034 - 019935ECS01 - Billet Boost Tap Kit - Taps in between manifold vacuum line to create a boost reference source - Includes clamps - ECS - Audi Volkswagen

Taps in between manifold vacuum line to create a boost reference source - Includes clamps 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
3221034
Mfg#:
019935ECS01
In Stock
$47.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 1, Driveshaft Center Support Bearing Carrier & Rear Differential Mount

ES#4751080 - ECSB6A4RA4S1EBKT - RA4 240mm Clutch Conversion Kit - Stage 1, Driveshaft Center Support Bearing Carrier & Rear Differential Mount - Lightweight flywheel with the S4 pressure plate and disc - Enthusiast Bundles - Audi

Lightweight flywheel with the S4 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#:
4751080
Mfg#:
ECSB6A4RA4S1EBKT
Ships in 10 Business Days
ON SALE! SAVE 25%
$1203.99

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

$899.99 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

JE Performance Piston Set

ES#2794316 - JE18T242909 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81mm bore (stock), 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
2794316
Mfg#:
JE18T242909
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#3509366 - JE18T242926 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 81.5mm bore (0.5mm overbore), 8.5:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
3509366
Mfg#:
JE18T242926
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

JE Performance Piston Set

ES#4849836 - 353830 - JE Performance Piston Set - Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) - JE Piston - Audi Volkswagen

Includes rings, wire locks, and wrist pins - 82mm bore (1mm overbore), 9.25:1 CR, 86.4mm stroke (stock) *For use with 20mm wrist pin connecting rods*

Brand:
JE Piston - Corporate Logo
ES#:
4849836
Mfg#:
353830
Back Ordered
$899.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Driveshaft Center Support Bearing Carrier

Holds the driveshaft where it should be For vehicles with 6HP19 transmissions (6 speed automatic)

Brand:
JXB Performance - Corporate Logo
ES#:
4305094
Mfg#:
B6004A0
In Stock at Vendor
Starting at $299.99 USD
Customize
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

ES#2983856 - 46-188564 - Bilstein B12 Pro-Kit Suspension System - Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our Spin To Win Sweepstakes!

Brand:
Bilstein - Corporate Logo
ES#:
2983856
Mfg#:
46-188564
Back Ordered
$899.00 USD
Free Shipping

Stage 3 Daily Clutch Kit

ES#3477643 - 70205ssosmfKT - Stage 3 Daily Clutch Kit - Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 395ft/lbs. - South Bend Clutch - Audi Volkswagen

Designed for high-powered street cars while capable enough to handle the track. Conservatively rated at 395ft/lbs.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3477643
Mfg#:
70205SSOSMFKT
Ships in 1 Business Day
$891.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Shocks & Struts - Koni Sports (Set Of Four)

ES#2219836 - 8040-1283SPORT - Shocks & Struts - Koni Sports (Set Of Four) - Add the legendary performance of Koni shocks and struts to your Audi - Koni - Audi

Add the legendary performance of Koni shocks and struts to your Audi

Brand:
Koni - Corporate Logo
ES#:
2219836
Mfg#:
8040-1283SPORT
In Stock at Vendor
$882.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Clutch Kit - Stage 3

ES#1027 - B5S4CMCK - Clutch Kit - Stage 3 - More holding power & a Kevlar lined disc - Assembled By ECS - Audi

More holding power & a Kevlar lined disc 10X Entries Into Our F80 M3 Sweepstakes
Replacement clutch kit for the RA4 Stage 3 conversion

Brand:
Assembled By ECS - Corporate Logo
ES#:
1027
Mfg#:
B5S4CMCK
Ships in 7 Business Days
$876.99 USD
Free Shipping
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 Into Our F80 M3 Sweepstakes

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

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

Sachs Performance Clutch Kit

ES#3463392 - 999715999961KT - Sachs Performance Clutch Kit - Includes high-clamp pressure plate and full-face organic clutch disc - Handles up to 400 lb-ft of torque - SACHS Performance - Audi

Includes high-clamp pressure plate and full-face organic clutch disc - Handles up to 400 lb-ft of torque To be used in conjuction with factory flywheel and release bearing

Brand:
SACHS Performance - Corporate Logo
ES#:
3463392
Mfg#:
999715999961KT
Ships in 5 Business Days
$862.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Bilstein B12 Pro-Kit Suspension System

ES#2983778 - 46-182999 - Bilstein B12 Pro-Kit Suspension System - Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! - Bilstein - Audi

Expertly matched performance Eibach Pro-line lowering springs and Bilstein shock/strut package for a dramatic increase in performance handling. World-famous Bilstein quality with a limited lifetime warranty! 10X Entries Into Our F80 M3 Sweepstakes
2X Entries For Our Spin To Win Sweepstakes!
Lowers an average of 30mm front and rear. Up to VIN 8E-2-400 000

Brand:
Bilstein - Corporate Logo
ES#:
2983778
Mfg#:
46-182999
In Stock
$860.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Performance Stainless 2.5" Downpipe

ES#3175267 - 251125 - 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 5-speed transmission models only - To be used with 2.5" aftermarket exhaust system

Brand:
Techtonics Tuning - Corporate Logo
ES#:
3175267
Mfg#:
251125
Ships on Oct 5, 2026
$286.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 7mm With Black Conical Seat Bolts

ES#2748188 - ECS10611KTWBC1 - ECS Wheel Spacer & Bolt Kit - 7mm 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
Please measure your hub protrusion to ensure it will still make contact with the center of the wheel. See

Brand:
ECS - Corporate Logo
ES#:
2748188
Mfg#:
ECS10611KTWBC1
In Stock
ON SALE! SAVE 20%
$132.99

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

$106.39 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Parts & Upgrades

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