Eisenmann Valvetronic axle-back for the BMW M3 Touring G81 with S58 engine. Fully EC type-approved, GPF and OPF compatible - no coding or modification needed.
Includes resonator delete pipes, stainless steel slant-cut tips (chrome + brushed aluminium), and all clamps. Valves open for full S58 character; close for refined daily driving.
Direct slip-on fit - no cutting, welding or fabrication
Stainless steel construction, UK street legal
Valvetronic control via OEM switch (no extra wiring)
Cleaner exhaust flow and sharper tone versus stock
