Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle

Audi S4 Performance Parts & Upgrades

Sort By
Filter By
Return to Top
ES#517827 - DP21348 - Greenstuff Performance Front Brake Pad Set - Mildly upgraded pad, great for an afternoon of sporty driving. - EBC - Audi Volkswagen

Mildly upgraded pad, great for an afternoon of sporty driving. 2X Entries Into Our F80 M3 Sweepstakes

Brand:
EBC - Corporate Logo
ES#:
517827
Mfg#:
DP21348
Ships in 1 Business Day
5% off MSRP

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

$349.99

This product was last offered at the strikethrough price on
10-23-2026

$331.99 USD
Free Shipping
ES#4475546 - LS-TS-AI-0008-B - Traction-S Performance Lowering Springs - Average lowering of 0.6" front and 0.6" rear - GODSPEED - Audi

Average lowering of 0.6" front and 0.6" rear

Brand:
GODSPEED - Corporate Logo
ES#:
4475546
Mfg#:
LS-TS-AI-0008-B
Ships in 7 Business Days
$200.00 USD
Free Shipping
on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
ES#5375239 - IESUCZ3 - IE Rear Sway Bar Upgrade - Direct bolt-in replacement with adjustable stiffness for reduced body roll and increased grip! - Integrated Engineering - Audi

Direct bolt-in replacement with adjustable stiffness for reduced body roll and increased grip!

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375239
Mfg#:
IESUCZ3
Ships in 4 Business Days
$459.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#5527498 - IEEXCK13 - IE Valved Catback Exhaust, Audi B9 S4 - This catback comes with app-controlled valves: open them for the full note, close them for a quiet cruise, no extra hardware to keep track of. - Integrated Engineering - Audi

This catback comes with app-controlled valves: open them for the full note, close them for a quiet cruise, no extra hardware to keep track of.

Brand:
Integrated Engineering - Corporate Logo
ES#:
5527498
Mfg#:
IEEXCK13
Ships in 4 Business Days
$1999.99 USD
Free Shipping
ES#4883642 - IEEXCG3 - IE Catback Exhaust System - B8 S4 - Features dual 2.5 tubing, 90mm quad tips, and iE's DroneTrap technology - Integrated Engineering - Audi

Features dual 2.5” tubing, 90mm quad tips, and iE's DroneTrap technology

Brand:
Integrated Engineering - Corporate Logo
ES#:
4883642
Mfg#:
IEEXCG3
Ships in 4 Business Days
$2089.99 USD
Free Shipping
ES#5375241 - IESUCZ1 - IE Front Sway Bar Upgrade - Direct bolt-in replacement with adjustable stiffness for reduced body roll and increased grip! - Integrated Engineering - Audi

Direct bolt-in replacement with adjustable stiffness for reduced body roll and increased grip! This front sway bar must be paired with the matching iE SQ5 Rear Sway Bar (IESUCZ3)

Brand:
Integrated Engineering - Corporate Logo
ES#:
5375241
Mfg#:
IESUCZ1
Ships in 4 Business Days
$459.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3466840 - SSXAU695 - Cat-Back Exhaust System - Resonated With Exhaust Valves - 2.50" stainless steel with quad GT-100 Cerakote black tips - Milltek Sport - Audi

2.50" stainless steel with quad GT-100 Cerakote black tips Fits models with factory rear sports differential
For vehicles with a sport differential and without brace bars

Brand:
Milltek Sport - Corporate Logo
ES#:
3466840
Mfg#:
SSXAU695
Ships on Nov 13, 2026
$3752.99 USD
This product is lifetime replacement eligible Lifetime Replacement
ES#3245430 - SSXAU556 - Cat-Back Exhaust System - Resonated - 2.37" stainless steel with quad 80mm GT80 black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with quad 80mm GT80 black Cerakote tips Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
3245430
Mfg#:
SSXAU556
Ships on Nov 13, 2026
$3481.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827524 - SSXAU407 - Cat-Back Exhaust System - Valvesonic - 2.37" stainless steel with quad 100mm polished tips - Milltek Sport - Audi

2.37" stainless steel with quad 100mm polished tips *Designed for professional installation only - Setup/configuration must be completed at a Milltek Sport authorized dealer*
From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827524
Mfg#:
SSXAU407
Ships on Nov 13, 2026
$4460.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3236155 - SSXAU649 - Cat-Back Exhaust System - Resonated With Exhaust Valves - 2.50" stainless steel with quad Cerakote black velvet oval tips - Milltek Sport - Audi

2.50" stainless steel with quad Cerakote black velvet oval tips Fits models without factory rear sports differential
For vehicles without a sport differential

Brand:
Milltek Sport - Corporate Logo
ES#:
3236155
Mfg#:
SSXAU649
Ships on Nov 13, 2026
$4236.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#3137837 - SSXAU557 - Cat-Back Exhaust System - Non-Resonated Race Version - 2.37" stainless steel with quad 80mm black Cerakote tips - Milltek Sport - Audi

2.37" stainless steel with quad 80mm black Cerakote tips Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
3137837
Mfg#:
SSXAU557
Ships on Nov 13, 2026
$3147.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2827497 - SSXAU380 - Cat-Back Exhaust System - Valvesonic - 2.37" stainless steel with dual oval tips - Milltek Sport - Audi

2.37" stainless steel with dual oval tips Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2827497
Mfg#:
SSXAU380
Ships on Nov 13, 2026
$5143.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#2973070 - MSAUVS02KT - ValveSonic Upgrade Kit - Upgrade your Milltek system to Valve Sonic - Milltek Sport - Audi

Upgrade your Milltek system to Valve Sonic

Brand:
Milltek Sport - Corporate Logo
ES#:
2973070
Mfg#:
MSAUVS02KT
Ships on Nov 13, 2026
$2102.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
ES#4795395 - ESK6140 - Power Stop Euro-Stop Premium Front Brake Kit (345mm) - An authentic OE-specification front braking solution featuring European-sourced pads, high-carbon smooth Geomet coated rotors, and strict ECE-R90 certification. - Power Stop - Audi

An authentic OE-specification front braking solution featuring European-sourced pads, high-carbon smooth Geomet® coated rotors, and strict ECE-R90 certification.

Brand:
Power Stop - Corporate Logo
ES#:
4795395
Mfg#:
ESK6140
Ships in 1 Business Day
$288.99 USD
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

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings