Upgrade the exhaust sound of your BMW - T304 Stainless Steel with Vacuum-Operated Valves
BMW E90 M3 S65 4.0L Performance Exhaust Parts & Upgrades
- Axle Back
- Cat Back
- Catalytic Converter
- Complete System
- Cutout
- Mid Pipes
- Mufflers
- Tips
- 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
Your BMW's factory exhaust tips are fine for getting groceries, but if you've upgraded your valence or just want a rear-end aesthetic that matches your car's performance pedigree, "fine" doesn't cut it. It's time for an attitude adjustment.
10X Entries Into Our F80 M3 Sweepstakes
2.5" Clamp-on Inlet / 4.0" Single Wall, Slant Cut Outlet
10X Entries Into Our F80 M3 Sweepstakes
Not vehicle specific. You MUST measure prior to purchasing!
This product was last offered at the strikethrough price on
06-13-2026
2.5" stainless steel with quad 3.5" polished stainless tips
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