Upgrade the exhaust sound of your BMW - T304 Stainless Steel with Vacuum-Operated Valves
BMW E90 M3 S65 4.0L Performance Exhaust Parts
- Axle Back
- Cat Back
- Catalytic Converter
- Center Section
- Complete System
- Downpipe
- Hardware
- Heat Wrap
- Mufflers
- Tips
- Turbo Back
- Valve Controller
- X Pipes
Upgrade the exhaust sound of your BMW - T304 Stainless Steel with Vacuum-Operated Valves
Manually and automatically adjust the exhaust sound level
Control your Varex valve with the press 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
3.0" Inlet - 3.5" Outlet - Forged Carbon Sleeve
This product was last offered at the strikethrough price on
05-19-2026
Mandrel-bent stainless steel with carbon fiber tips
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
08-23-2026
Mandrel-bent stainless steel with carbon fiber tips
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
08-23-2026
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
An aggressive muscle car sound without the drone
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
08-23-2026