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Choose your own configuration along with your choice of exhaust tips and more!
10X Entries Into Our F80 M3 Sweepstakes
For Sedan models only.
complete drop-in upgrade will bolt up to stock/Stock Fit Turbo
2X Entries Into Our F80 M3 Sweepstakes
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
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
10X Entries Into Our F80 M3 Sweepstakes
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
Seamlessly fits in place of your restrictive stock cat - Features 3″ stainless steel piping, smooth mandrel bends, and two 02 sensor bungs
This product was last offered at the strikethrough price on
09-29-2026
Lifetime Replacement
For Manual Transmissions - Comes with cats and 2.5" cat back
2.25" stainless steel with dual 100mm 'GT100' style polished exhaust tips
Lifetime Replacement
For Automatic Transmissions - Comes with cats and 2.5" cat back
Add an aggressive exhaust note to your B6 S4 so you can hear that V8 roar!
10X Entries Into Our F80 M3 Sweepstakes
Lifetime Replacement
2.5" stainless steel with dual 100mm polished tips
Fits 5 speed manual only
Lifetime Replacement
2.5" stainless steel with dual 100mm polished tips
Fits 6 speed manual only
Lifetime Replacement
2.5" stainless steel with dual 90mm polished tips
Fits 5 speed manual only
Lifetime Replacement
2.5" stainless steel and 90mm tips
Lifetime Replacement
2.25" stainless steel with your choice of tip style
2.5" stainless steel with dual 100mm polished tips
Fits 5 speed manual only
Lifetime Replacement
