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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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Sport Cup Kit - H&R Springs With Bilstein Shocks & Struts

ES#850 - 29368BSC - Sport Cup Kit - H&R Springs With Bilstein Shocks & Struts - Average lowering of 1.7"F 1.6"R - Assembled By ECS - Audi

Average lowering of 1.7"F 1.6"R affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
Sedan & Avant models only

Brand:
Assembled By ECS - Corporate Logo
ES#:
850
Mfg#:
29368BSC
In Stock
$875.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Front EP24 "Enthusiast Performance" Brake Pad Set

ES#4739118 - EP24-977 - Front 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 Porsche

This enthusiast-developed high-performance street and light track pad offers an ideal solution for the spirited commuter and weekend autocross driver alike. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

For use with the Stage 4 Big Brake Kit

Brand:
ECS - Corporate Logo
ES#:
4739118
Mfg#:
EP24-977
In Stock
ON SALE! SAVE 20%
$180.99

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

$144.79 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Adjustable Damping Performance Coilover System - Audi B6/B7 A4/S4 & Performance Rear Differential Mount

ES#4751047 - 027966ECS01EBKT - Adjustable Damping Performance Coilover System - Audi B6/B7 A4/S4 & Performance Rear Differential Mount - Take control of your ride while going low with our sport-tuned coilover system! - Enthusiast Bundles - Audi

Take control of your ride while going low with our sport-tuned coilover system! Don't See A Bundle You Want - Give Us A Call Or Chat - We Will Make One! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
Enthusiast Bundles - Corporate Logo
ES#:
4751047
Mfg#:
027966ECS01EBKT
In Stock
ON SALE! SAVE 30%
$1205.99

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

$849.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts

ES#4042990 - EMD-SPACER10571B - EMD Wheel Spacer & Bolt Kit - 10mm With Ball Seat Bolts - Includes everything you need to install spacers on two wheels - Emmanuele Design - Audi Volkswagen

Includes everything you need to install spacers on two wheels affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Fits OEM wheels or wheels that require ball seat wheel bolts

Brand:
Emmanuele Design - Corporate Logo
ES#:
4042990
Mfg#:
EMD-SPACER10571B
Ships in 1 Business Day
$110.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 5mm With Black Conical Seat Bolts

ES#2748184 - ECS10154KTWBC1 - ECS Wheel Spacer & Bolt Kit - 5mm 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 affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary 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#:
2748184
Mfg#:
ECS10154KTWBC1
In Stock
ON SALE! SAVE 25%
$124.99

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

$93.14 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

CTS Turbo B6 A4 High-flow Cat Pipe

ES#4043061 - CTSEXHTP0002B6CA - CTS Turbo B6 A4 High-flow Cat Pipe - Seamlessly fits in place of your restrictive stock cat - Features 3 stainless steel piping, smooth mandrel bends, and two 02 sensor bungs - CTS - Audi

Seamlessly fits in place of your restrictive stock cat - Features 3″ stainless steel piping, smooth mandrel bends, and two 02 sensor bungs affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

Brand:
CTS - Corporate Logo
ES#:
4043061
Mfg#:
CTSEXHTP0002B6CA
In Stock
$249.99 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. affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Works with stock dual mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3098856
Mfg#:
205HDOFEDMKT
In Stock
$618.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Performance Ignition Coils - Set Of Four

ES#5336660 - 056059la09-4KT - ECS Performance Ignition Coils - Set Of Four - Increased energy output over OE coils for a stronger, more consistent spark! - ECS - Audi Volkswagen

Increased energy output over OE coils for a stronger, more consistent spark! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5336660
Mfg#:
056059LA09-4KT
Ships in 4 Business Days
ON SALE! SAVE 20%
$139.99

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

$111.97 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW Street Comfort Kit

ES#2951370 - 18010058kt - KW Street Comfort Kit - Street Comfort coilovers offer sport handling with adjustable ride height - KW Suspension - Audi

Street Comfort coilovers offer sport handling with adjustable ride height affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Avant & Cabriolet models only

Brand:
KW Suspension - Corporate Logo
ES#:
2951370
Mfg#:
18010058KT
Back Ordered
$2454.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

VTT “OBD-LOCK” ODB Port Locking Tool

ES#4766229 - VTT-OBD-LOCK - VTT OBD-LOCK ODB Port Locking Tool - Prevent Dealerships From Re-Flashing Your Car Against Your Wishes! - Vargas Turbo Technologies - Audi BMW Volkswagen Mercedes Benz Porsche

Prevent Dealerships From Re-Flashing Your Car Against Your Wishes! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For Vehicles Produced After 1995

Brand:
Vargas Turbo Technologies - Corporate Logo
ES#:
4766229
Mfg#:
VTT-OBD-LOCK
In Stock
$97.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

DR Series Wheel Spacers - 15mm (1 Pair)

ES#274 - 3055571 - DR Series Wheel Spacers - 15mm (1 Pair) - Fine tune your stance and improve handling - H&R - Audi Volkswagen

Fine tune your stance and improve handling affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!
We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
274
Mfg#:
3055571
In Stock
$119.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Pro 5 R Air Intake System - Stage 2

ES#264115 - 54-10322 - Pro 5 R Air Intake System - Stage 2 - Add real power that you can feel - AFE - Audi

Add real power that you can feel affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
CARB certified for sale in all 50 states

Brand:
AFE - Corporate Logo
ES#:
264115
Mfg#:
54-10322
EO#:
D-550-30
In Stock at Vendor
20% off MSRP

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

$498.75

This product was last offered at the strikethrough price on
05-13-2026

$399.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Audi B6/B7 A4/S4 Front 32mm & Rear 25mm Sway Bar Kit

ES#4609000 - 000601LA01FRKT - Audi B6/B7 A4/S4 Front 32mm & Rear 25mm Sway Bar Kit - Reduce body roll and enhance handling! - ECS - Audi

Reduce body roll and enhance handling! affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
4609000
Mfg#:
000601LA01FRKT
In Stock
ON SALE! SAVE 40%
$659.99

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

$395.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacers - 20mm (Pair)

ES#250711 - 002403ECS03A20KT - ECS Wheel Spacers - 20mm (Pair) - Exclusively built for your 57.1mm centerbore VW/Audi - ECS - Audi Volkswagen

Exclusively built for your 57.1mm centerbore VW/Audi affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
250711
Mfg#:
002403ECS03A20KT
In Stock
ON SALE! SAVE 10%
$137.99

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

$123.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

RA4 240mm Clutch Conversion Kit - Stage 1

ES#5488 - ECSB6A4RA4S1KTST - RA4 240mm Clutch Conversion Kit - Stage 1 - Lightweight flywheel with the S4 pressure plate and disc - ECS - Audi

Lightweight flywheel with the S4 pressure plate and disc affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms 10X Entries For Our 25th Anniversary Sweepstakes!

Brand:
ECS - Corporate Logo
ES#:
5488
Mfg#:
ECSB6A4RA4S1KTST
Ships on Aug 11, 2026
Auto Notify
ON SALE!
$799.99

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

$775.99 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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