Eisenmann’s valvetronic axle-back for the M4 G83 Convertible (S58) gives full electronic control over exhaust note - quiet for A-roads, open for that S58 bark. Resonator delete pipes deepen tone without drone. EC Type-Approved and OPF/GPF compatible, so it’s legal for UK roads.
Slip-on fitment means no welding or cutting beyond OEM rear section removal. Includes stainless tips with carbon outer sleeves and chrome finish, plus all clamps and documentation.
Valvetronic remote-controlled valves - no manual cables or aftermarket controllers
Fits all G83 M4 Convertibles with S58 engine, including GPF and non-GPF variants
No ECU coding required - plug-and-play with factory valve integration
