G16 M850i xDrive AC Schnitzer Quad Sports Exhaust, Valved, OPF Compatible (1812316514 / 1812316524)

For G16 M850i xDrive owners who’ve already ticked ‘B58’ and ‘stage 2’ off their list - this is the exhaust that doesn’t apologise for sounding like a proper race car.

• Direct-fit valved quad system for G16 M850i xDrive (2017-2023), no cutting, no coding, no compromises
• Fully OPF compatible - works with factory particulate filter and retains OEM valve control via driving mode or Sport button
• Stainless steel throughout; 102mm carbon-finish tailpipes - not just for show, but to match the G16’s width and presence
• Two variants: Standard (1812316514) and Export spec (1812316524) with optional soundpipe for track-day or fast-road use
• Search terms covered: G16 exhaust, B58 decat alternative, M850i stage 2 exhaust, fast road exhaust G16, track day exhaust for M850i, valved quad exhaust B58, OPF-compliant exhaust, show car exhaust G16, daily driver sports exhaust