Audi S4 Performance Exhaust Parts

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

5457424

Mfg#:

UVM63MMDUALOUTX2

Sport Cat-Pipe with 200 CPSI Catalytic Converter - Increase power, reduce weight, and improve sound! Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4164584

Mfg#:

AU94S-CD

Upgrade your Milltek system to Valve Sonic Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Up to the 2012 model year

Brand:

ES#:

2973066

Mfg#:

MSAUVS01KT

$2518.99 USD

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Lifetime Replacement

2.5" half-exhaust built to last with 304 stainless steel and quad ceramic daytona tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3969344

Mfg#:

SAU044C

Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes downpipes with high flow secondary cats Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4017779

Mfg#:

777532KT

Engineered for maximum power and induction sound! Featuring a sealed aluminum heatshield, silicone inlet hose, and a high-flow conical air filter. Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

5528463

Mfg#:

041486ECSDBKT

$1649.99 USD

Add to Cart

Lifetime Replacement

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4686062

Mfg#:

UVM.63MM.X1

2.5" stainless steel with dual 3.5" polished stainless tips Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply
Avant models only

Brand:

ES#:

2613791

Mfg#:

16769

$1196.00 USD

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Free Shipping

Lifetime Replacement

Stainless steel system with high flow catalytic converter Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

3107643

Mfg#:

769101KT

Stainless steel non-resonated cat-back exhaust system with quad round, polished tips - Includes secondary cat delete downpipes Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

4017775

Mfg#:

777512KT

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

5457434

Mfg#:

UVM76MMTSTYLEX1

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

5457432

Mfg#:

UVM76MMDUALOUTX1

Upgrade your ride with the Valvetronic Designs universal valve muffler kit, a premium T304 stainless steel solution that delivers an aggressive, valved exhaust note at the click of a button Earn 5% back in ECS Rewards on orders placed 10/26/26 - 10/31/26. Redeem 11/26/26 - 12/1/26. Terms & conditions apply

Brand:

ES#:

5457437

Mfg#:

UVM.89MM.X1