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Audi S4 Performance Parts & Upgrades

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Cat-Back Exhaust System - Resonated

ES#2827260 - SSXAU046 - Cat-Back Exhaust System - Resonated - 2.25" stainless steel with quad 76.2mm polished tips - Milltek Sport - Audi

2.25" stainless steel with quad 76.2mm polished tips

Brand:
Milltek Sport - Corporate Logo
ES#:
2827260
Mfg#:
SSXAU046
Ships on Nov 12, 2026
$1776.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

IE Calico Coated ACL Race Rod Bearing Set

ES#2793997 - CAL4B1606HC5 - IE Calico Coated ACL Race Rod Bearing Set - Real Deal Calico Coated Rod Bearings - Full set for 5 rods, standard clearance - Integrated Engineering - Audi

Real Deal Calico Coated Rod Bearings - Full set for 5 rods, standard clearance

Brand:
Integrated Engineering - Corporate Logo
ES#:
2793997
Mfg#:
CAL4B1606HC5
Ships in 4 Business Days
$146.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Front Big Brake Kit - Stage 4 - 2-Piece Rotors (380x34)

ES#3183941 - 003883ecs01KT3 - Front Big Brake Kit - Stage 4 - 2-Piece Rotors (380x34) - Featuring ECS 380mm 2-piece rotors, ECS Stainless lines, and caliper brackets - Excludes calipers - ECS - Audi

Featuring ECS 380mm 2-piece rotors, ECS Stainless lines, and caliper brackets - Excludes calipers 10X Entries Into Our F80 M3 Sweepstakes
For customers that already sourced their own 8-piston RS5 calipers

Brand:
ECS - Corporate Logo
ES#:
3183941
Mfg#:
003883ECS01KT3
Ships on Mar 4, 2027
ON SALE!
$1815.99

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

$1761.51 USD
Free Shipping
This product is lifetime replacement eligible Partial Replacement

3.5" Cone Style Air Filter

ES#4304100 - CTS-AF-250 - 3.5" Cone Style Air Filter - Replacement filter for CTS-IT-300R and CTS-IT-938 - CTS - Audi

Replacement filter for CTS-IT-300R and CTS-IT-938

Brand:
CTS - Corporate Logo
ES#:
4304100
Mfg#:
CTS-AF-250
Ships in 7 Business Days
ON SALE! SAVE 20%
$99.99

This product was last offered at the strikethrough price on
09-29-2026

$79.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Stage 2 Daily Clutch Kit - With Flywheel

ES#3537134 - k70286hdoKT3 - Stage 2 Daily Clutch Kit - With Flywheel - 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.

Brand:
South Bend Clutch - Corporate Logo
ES#:
3537134
Mfg#:
K70286HDOKT3
Ships in 1 Business Day
$1755.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Ignition Service Kit

ES#3691949 - 06h905110lkt5KT - Ignition Service Kit - Includes six red top coil packs, OEM spark plugs, and dielectric spark plug boot protector to service your ignition! - Assembled By ECS - Audi

Includes six red top coil packs, OEM spark plugs, and dielectric spark plug boot protector to service your ignition! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
Assembled By ECS - Corporate Logo
ES#:
3691949
Mfg#:
06H905110LKT5KT
In Stock
ON SALE!
$349.48 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Carbon Fiber Intake System With Inlet

ES#4758920 - UH043-INA - Carbon Fiber Intake System With Inlet - Redefining performance and airflow dynamics with unparalleled precision and style. - Unitronic - Audi

Redefining performance and airflow dynamics with unparalleled precision and style. Tune is recommend for the best performance

Brand:
Unitronic - Corporate Logo
ES#:
4758920
Mfg#:
UH043-INA
Ships in 5 Business Days
$1745.99 USD
Free Shipping
on orders $49 and up

Front Drilled & Slotted Brake Rotors - Pair (321x30)

ES#3155202 - EBR637XPR - Front Drilled & Slotted Brake Rotors - Pair (321x30) - Upgrade to a slotted / cross-drilled rotor for improved braking - Power Stop - Audi

Upgrade to a slotted / cross-drilled rotor for improved braking

Brand:
Power Stop - Corporate Logo
ES#:
3155202
Mfg#:
EBR637XPR
In Stock
Limited Qty Sale
$238.99

This product was last offered at the strikethrough price on
09-28-2026

$217.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

2.5" Resonated Half Exhaust System

ES#3969343 - SAU044 - 2.5" Resonated Half Exhaust System - 2.5" half-exhaust built to last with 304 stainless steel and quad polished daytona tips - Scorpion - Audi

2.5" half-exhaust built to last with 304 stainless steel and quad polished daytona tips

Brand:
Scorpion - Corporate Logo
ES#:
3969343
Mfg#:
SAU044
Ships in 2 Business Days
$1741.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

Lightweight Billet Flexplate

ES#4500291 - FP-060AM-HD - Lightweight Billet Flexplate - Prevent your stock flexplate from cracking with this Billet unit! - Clutch Masters - Audi

Prevent your stock flexplate from cracking with this Billet unit!

Brand:
Clutch Masters - Corporate Logo
ES#:
4500291
Mfg#:
FP-060AM-HD
Ships in 6 Business Days
$579.99 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement

Silicone Y-Pipe Hose Pair

ES#2864562 - 034-108-3002 - Silicone Y-Pipe Hose Pair - Reinforced high-temp silicone for long life and abuse resistance - 034Motorsport - Audi

Reinforced high-temp silicone for long life and abuse resistance 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
2864562
Mfg#:
034-108-3002
In Stock
$158.00 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

034Motorsport 3.0 TFSI Supercharger Pulley Removal Tool

ES#4005448 - 034-145-Z037 - 034Motorsport 3.0 TFSI Supercharger Pulley Removal Tool - Features precision machined half-shells designed to perfectly clamp the supercharger pulley for easy removal - 034Motorsport - Audi Porsche

Features precision machined half-shells designed to perfectly clamp the supercharger pulley for easy removal 2X Entries Into Our F80 M3 Sweepstakes

Brand:
034Motorsport - Corporate Logo
ES#:
4005448
Mfg#:
034-145-Z037
In Stock
$248.00 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 We Price Match - Give Us A Call or Chat!

Brand:
H&R - Corporate Logo
ES#:
274
Mfg#:
3055571
Ships in 3 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.

$119.99

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

$107.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ECS Wheel Spacer & Bolt Kit - 8mm With Black Conical Seat Bolts

ES#2748190 - ECS10612KTWBC1 - ECS Wheel Spacer & Bolt Kit - 8mm 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#:
2748190
Mfg#:
ECS10612KTWBC1
In Stock
ON SALE! SAVE 25%
$134.99

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

$101.24 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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Manufacturer names and/or part numbers are used only for identification purposes.

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