Milltek 80mm OPF/GPF-Back exhaust system with centre resonator bypass for the BMW G80 M3 and G82 M4 (S58). Hand-finished T304L stainless steel with mandrel-bent piping and CNC-formed GT-115 trim tips. Restores the M3/M4 signature tone while maintaining OEM+ fitment using factory mounting points. OE particulate filter removal required. Key Features: T304L stainless steel, hand-finished Mandrel-bent pipework for optimized flow Centre resonator bypass system GT-115 stainless steel trim tips OEM+ fitment using factory mounting points Fits: 2021+ BMW M3 (G80) and M4 (G82) with S58 engine
