Audi S4 Performance Exhaust Mufflers

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

Brand:

ES#:

5457431

Mfg#:

UVM.63MM.X2

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

Brand:

ES#:

5457438

Mfg#:

UVM.89MM.X2

Looking to bring it down a notch? 2X Entries Into Our F80 M3 Sweepstakes

For vehicles from the 2013 model year (Facelift)

Brand:

ES#:

4044003

Mfg#:

3815-41010

15% off MSRP

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

$876.99

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

$745.00 USD

Add to Cart

Free Shipping

Lifetime Replacement

Looking to bring it down a notch? 2X Entries Into Our F80 M3 Sweepstakes

Brand:

ES#:

4044002

Mfg#:

3815-41008

$745.00 USD

Add to Cart

Free Shipping

Lifetime Replacement

Looking to crank it up a notch? 2X Entries Into Our F80 M3 Sweepstakes

For vehicles from the 2013 model year (Facelift)

Brand:

ES#:

4044022

Mfg#:

3820-41008

$410.00

This product was last offered at the strikethrough price on
05-11-2026

$395.00 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

Brand:

ES#:

5457436

Mfg#:

UVM.76MM.X2

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

Brand:

ES#:

5457433

Mfg#:

UVM76MMDUALOUTX2

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

Brand:

ES#:

5457426

Mfg#:

UVM63MMTSTYLEX1

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

Brand:

ES#:

5457423

Mfg#:

UVM63MMDUALOUTX1

Looking to crank it up a notch? 2X Entries Into Our F80 M3 Sweepstakes

Brand:

ES#:

4044021

Mfg#:

3820-41006

$410.00

This product was last offered at the strikethrough price on
05-11-2026

$395.00 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

Brand:

ES#:

5457435

Mfg#:

UVM.76MM.X1

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

Brand:

ES#:

5457424

Mfg#:

UVM63MMDUALOUTX2

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

Brand:

ES#:

4686062

Mfg#:

UVM.63MM.X1

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

Brand:

ES#:

5457434

Mfg#:

UVM76MMTSTYLEX1