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
2.5" Inlet - 3.5" Outlet - Forged Carbon Fiber Sleeve
Delete your midpipe resonators to improve your exhaust tone without affecting emissions
Secures items under the hood and resists rust
Connect your stock mufflers to a performance Supersprint center section
2.5" Inlet - 3.5" Outlet - Single Wall Burnt Steel
2.5" Inlet - 3.5" Outlet - Single Wall Brushed Steel
3.0" Inlet - 4.0" Outlet - 1x1 Carbon Fiber Sleeve
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
09-21-2026
3.0" Inlet - 3.5" Outlet - Single Wall Brushed Steel
1" X 3ft
Upgrade your X3 M's exhaust for a sportier, more agressive tone - Available in an Axleback or Cat-Back configuration with two different tips to choose from!
2X Entries Into Our F80 M3 Sweepstakes
3.0" Inlet - 3.5" Outlet - Single Wall Burnt Steel
Light-weight titanium exhaust axle back system
10X Entries Into Our F80 M3 Sweepstakes
Give your car that exhaust tone you've always wanted!
Build-Your-Own high performance exhaust system!