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Audi S4 Performance Parts & Upgrades

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Performance Intake System

ES#4835388 - B930TINT - Performance Intake System - maximize your airflow with more power, torque, and incredible induction sounds! - ARM Motorsports - Audi

maximize your airflow with more power, torque, and incredible induction sounds!

Brand:
ARM Motorsports - Corporate Logo
ES#:
4835388
Mfg#:
B930TINT
In Stock
$227.00 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. 10X Entries Into Our F80 M3 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%
$184.99

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

$147.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Tubular Rear Subframe

ES#4701691 - WAS-501 - Lightweight Tubular Rear Subframe - Increases chassis rigidity for improved handling performance and eliminates subframe shifting - Verkline - Audi

Increases chassis rigidity for improved handling performance and eliminates subframe shifting

Brand:
Verkline - Corporate Logo
ES#:
4701691
Mfg#:
WAS-501
Ships on Nov 6, 2026
$1699.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW V3 Series Coilover Kit

ES#2102369 - 35210078 - KW V3 Series Coilover Kit - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening Fits avant models without 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#:
2102369
Mfg#:
35210078
Ships in 5 Business Days
$3394.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

KW V3 Series Coilover Kit

ES#2092331 - 35210035 - KW V3 Series Coilover Kit - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening Fits sedan models only. Range of lowering is 0.4-1.5" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092331
Mfg#:
35210035
Back Ordered
$3394.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

V3 Series Coilover Kit

ES#2092349 - 35210065 - V3 Series Coilover Kit - The ultimate in coilover technology featuring double adjustable dampening - KW Suspension - Audi

The ultimate in coilover technology featuring double adjustable dampening Fits cabriolet and avant models only.
For avant and convertible models only. Range of lowering is 0.4-1.5" in the front and rear.

Brand:
KW Suspension - Corporate Logo
ES#:
2092349
Mfg#:
35210065
Back Ordered
$3394.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Wheel Spacer & Bolt Kit - 17.5mm With Black Conical Seat Bolts

ES#2748289 - 6-ECS-023 - Wheel Spacer & Bolt Kit - 17.5mm With Black 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#:
2748289
Mfg#:
6-ECS-023
In Stock
ON SALE! SAVE 25%
$173.99

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

$130.49 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Limited Slip Differential

ES#2836902 - 40309175WK - Limited Slip Differential - Put all your power to the ground! - Wavetrac - Audi Porsche

Put all your power to the ground! Fits 0A3 manual transmission models only

Brand:
Wavetrac - Corporate Logo
ES#:
2836902
Mfg#:
40309175WK
Ships in 3 Business Days
$1695.00 USD
Free Shipping

JHM Exhaust Headers With Cats

For Manual Transmissions - Comes with cats and 2.5" cat back

Brand:
JH Motorsports - Corporate Logo
ES#:
5376133
Mfg#:
JHM-B6S-LTHM
Ships on Nov 6, 2026
$3386.99 USD
Free Shipping
on orders $49 and up

Stage 2 Daily Clutch Kit

ES#3106516 - k70398fhdoKT - Stage 2 Daily Clutch Kit - Designed for the daily-driven, weekend track warrior. Conservatively rated at 350ft/lbs. - South Bend Clutch - Audi

Designed for the daily-driven, weekend track warrior. Conservatively rated at 350ft/lbs. Includes single mass flywheel

Brand:
South Bend Clutch - Corporate Logo
ES#:
3106516
Mfg#:
K70398FHDOKT
In Stock
$1692.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Motorsport StreetSport Engine Mounts - Pair

ES#4846368 - 034-509-0089 - Motorsport StreetSport Engine Mounts - Pair - Designed with extreme performance in mind and manufactured from billet aluminum and high-durometer Density Line rubber for better ride characteristics than polyurethane. - 034Motorsport - Audi

Designed with extreme performance in mind and manufactured from billet aluminum and high-durometer Density Line rubber for better ride characteristics than polyurethane. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4846368
Mfg#:
034-509-0089
In Stock
$677.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Street Performance Coilover Kit

ES#628 - 29471-1 - Street Performance Coilover Kit - Unrivaled comfort and performance. Average lowering of 1.6"-2.5"F 1.3"-2.0"R - H&R - Audi

Unrivaled comfort and performance. Average lowering of 1.6"-2.5"F 1.3"-2.0"R We Price Match - Give Us A Call or Chat!
Fits Sedan models only

Brand:
H&R - Corporate Logo
ES#:
628
Mfg#:
29471-1
In Stock
10% off MSRP

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

$1880.00

This product was last offered at the strikethrough price on
10-01-2026

$1692.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ultra Low Coilover System - Fixed Damping

ES#2718824 - 29019-1 - Ultra Low Coilover System - Fixed Damping - Extreme lowering capabilities - Average lowering of 1.5"-2.7"F 1.4"-2.7"R - H&R - Audi

Extreme lowering capabilities - Average lowering of 1.5"-2.7"F 1.4"-2.7"R We Price Match - Give Us A Call or Chat!
Vehicles equipped with Electronic Damping Control (EDC) will lose shock damping and receive a system error code with coilover systems.

Brand:
H&R - Corporate Logo
ES#:
2718824
Mfg#:
29019-1
Ships in 4 Business Days
10% off MSRP

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

$1880.00

This product was last offered at the strikethrough price on
10-01-2026

$1692.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

2.5" High-Flow Downpipe

ES#3420821 - SSXAU673 - 2.5" High-Flow Downpipe - Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems. - Milltek Sport - Audi

Featuring Milltek Sport Hi-Flow sports cat, fits with OE and Milltek cat-back systems.

Brand:
Milltek Sport - Corporate Logo
ES#:
3420821
Mfg#:
SSXAU673
Ships on Nov 12, 2026
$3374.99

This product was last offered at the strikethrough price on
08-17-2026

$3374.78 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Cat-Back Exhaust System - Resonated

ES#2827420 - SSXAU296 - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips - Milltek Sport - Audi

2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips

Brand:
Milltek Sport - Corporate Logo
ES#:
2827420
Mfg#:
SSXAU296
Ships on Dec 2, 2026
$1685.99 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.

Let us help you find the parts that fit your Audi

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