Valvetronic Designs Valved Sport Axle-Back Exhaust – BMW F30/F32/F33/F36/F22

OVERVIEW

Version 2 of Valvetronic Designs' F-Chassis Valved Axle-Back is the most refined system yet for the BMW F-Series lineup, built in T304 stainless steel with electronic valves and a newly engineered cast Y-pipe. Version 2 introduces a redesigned valve for improved reliability and responsiveness, relocated hangers, and revised muffler internals for a more docile, refined tone when the valves are closed. The cast Y-pipe maximizes exhaust flow and enhances tonal quality, delivering a more engaging, sonorous sound across the rev range, whether paired with the OEM mid-pipe or most aftermarket mid-pipes matching factory dimensions.

With the valves open, the system produces a deep, raw, aggressive tone with loud pops, sharp overrun snaps, and pronounced gear-change sounds; with them closed, it returns to near-stock volume for quiet commuting or late-night driving. On cars with a factory exhaust valve, the valves integrate with BMW's drive-mode settings for instant sound control from the cabin. Construction is brushed T304 stainless steel with precision TIG welds, full mandrel bends, and sleeve-style exhaust tips for perfect alignment.

SPECS

• Material: Brushed T304 stainless steel
• Valves: OEM-style electronic, integrated with BMW drive modes; extension harness included
• Design: Cast Y-pipe with revised muffler internals for tonal refinement
• Tips: Sleeve-style 3.5" exhaust tips, five finish options
• 100% reversible — return to stock at any time

PARTS INCLUDED

• T304 stainless steel valved axle-back exhaust
• Cast Y-pipe assembly
• OEM-style electronic valves
• Extension harness for factory valve integration
• Sleeve-style exhaust tips
• Adapter pipe for 4-cylinder applications
• All necessary clamps and hardware

TECH RESOURCES

• Required for cars without a factory exhaust valve (e.g. 320i): Valvetronic Designs Electronic Exhaust Valve Control Kit (1-valve kit, VTD.EVH) to enable in-car valve control.
• Required for non-M Sport and 4-cylinder cars: an M-Sport-style dual-exit rear diffuser (e.g. the 435i M Sport diffuser), or modification of the existing diffuser, for correct dual-tip exit.
• 4-cylinder cars: use the included adapter pipe; welding is recommended.
• B58 and B46/B48 cars: a minor mid-pipe modification is required — Valvetronic Designs B58 / 4-cylinder mid-pipe modification guide.
• Fits the OEM mid-pipe or any aftermarket mid-pipe that matches factory dimensions.
• Valvetronic Designs' current fitment chart names the F30 330i and 340i (2016–2018); the other applications below are covered through the diffuser, adapter-pipe and valve-kit notes above. Contact Speed Logic to confirm your car before ordering.
• Professional installation is recommended.

PART NUMBER

• BMW.F.VSES.BR.RC — 1x1 Carbon Fiber tips
• BMW.F.VSES.BR.BRSH — Brushed Steel tips
• BMW.F.VSES.BR.BRT — Burnt tips
• BMW.F.VSES.BR.BLK — Black tips
• BMW.F.VSES.BR.FC — Forged Carbon Fiber tips

VEHICLE APPLICATIONS