Valvetronic Designs
BMW G8x M3/M4 Valved Sport Exhaust System
This single 3.5” equal-length mid-pipe with optional valved axle-back is crafted from T304 stainless steel or Grade 5 titanium for optimized flow and improved power. It pairs seamlessly with OEM or aftermarket rear sections and includes a controller for electronic valve control.
USD 1124.99
- Our single 3.5" equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section.
- Add the Valvetronic Designs valved axle-back for even more presence and control.
- Compatible with OEM downpipes or free-flow front pipes, this system is engineered to deliver a higher-pitch, refined note with zero check-engine lights.
- Sound With Free Flow Downpipes: Sound With Stock Downpipes: Why It Works Equal-length design: Balances exhaust pulses for a smoother, higher-frequency tone.
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BMW G80 M3 / G82–G83 M4 Exhaust System Single 3.5" Equal-Length Mid-Pipe + Optional Valved Axle-Back (T304 Stainless or Grade 5 Titanium) Overview The G80/G82/G83 is a phenomenal M car—its soundtrack just needs to catch up. Our single 3.5" equal-length mid-pipe unlocks the character the S58 deserves without requiring changes to the OEM rear section. Add the Valvetronic Designs valved axle-back for even more presence and control. Compatible with OEM downpipes or free-flow front pipes, this system is engineered to deliver a higher-pitch, refined note with zero check-engine lights. Soun