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Audi S4 Performance Axle-Back Exhausts

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B6 S4 Muffler Delete Kit - With 4.0" Black Chrome Tips

ES#4660138 - 042002la01KT - B6 S4 Muffler Delete Kit - With 4.0" Black Chrome Tips - Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! - ECS - Audi

Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4660138
Mfg#:
042002LA01KT
Ships in 6 Business Days
$463.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

B6 S4 Muffler Delete Kit - With 4.0" Chrome Tips

ES#4660245 - 042002LA01KT2 - B6 S4 Muffler Delete Kit - With 4.0" Chrome Tips - Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! - ECS - Audi

Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar! 10X Entries Into Our F80 M3 Sweepstakes

Brand:
ECS - Corporate Logo
ES#:
4660245
Mfg#:
042002LA01KT2
Ships in 6 Business Days
$463.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ValveSonic Upgrade Kit

ES#2973070 - MSAUVS02KT - ValveSonic Upgrade Kit - Upgrade your Milltek system to Valve Sonic - Milltek Sport - Audi

Upgrade your Milltek system to Valve Sonic From the 2013 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2973070
Mfg#:
MSAUVS02KT
Ships on Nov 11, 2026
$2102.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

ValveSonic Upgrade Kit

Upgrade your Milltek system to Valve Sonic Up to the 2012 model year

Brand:
Milltek Sport - Corporate Logo
ES#:
2973066
Mfg#:
MSAUVS01KT
Ships on Nov 11, 2026
$2518.99 USD
Free Shipping
This product is lifetime replacement eligible Lifetime Replacement

More About Performance Axle-Back Exhausts

One of the most cost-effective and daily livable exhaust upgrades is an axle-back exhaust system. The axle-back exhaust replaces everything from the rear axle to the muffler for a sporty look and sound without sacrificing comfort or cost.

Let us help you find the parts that fit your Audi

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

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