BMW E90 M3 S65 4.0L
Choose between a 2.5" or 3.0" valved mufflers to complete your custom exhaust.
10X Entries Into Our F80 M3 Sweepstakes
Add an aggressive exhaust note without breaking the bank! Engineered specifically for the high-revving V8, this upgrade delivers reduced weight & increased exhaust flow, unlocking that iconic S65 sound.
10X Entries Into Our F80 M3 Sweepstakes
This product was last offered at the strikethrough price on
06-13-2026
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
100% handcrafted in Italy. Stainless steel construction. Legendary sound!
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
Replace your failing muffler hanger!
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
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
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
Replace your failing muffler hanger!
Lifetime Replacement
A low exhaust note with a free flow design
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
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
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
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
