The flagship Milltek Sport exhaust upgrade for the BMW M3 and M4 G8X — a full OPF/GPF Back System with Centre Resonator Bypass, finished with premium carbon fibre JET-115 tips. Engineered to transform the acoustic and visual presence of the S58-powered G8X generation, this system represents the definitive Milltek Sport upgrade for M3 and M4 owners.
The centre resonator bypass section eliminates the factory resonator, dramatically improving the exhaust flow and delivering a significantly enhanced exhaust note under acceleration. Combined with the OPF/GPF-Back design — which addresses the sound-dampening effects of the factory particulate filter — this system produces an exceptionally rich, characterful exhaust sound that truly reflects the performance of the S58 engine.
Carbon fibre JET-115 tips add a motorsport-derived aesthetic, complementing the aggressive styling of the M3 and M4. The system fits all G8X variants — including OPF/GPF-equipped European models, Non-OPF North American and ROW cars, M3 Touring, and xDrive models. Note: OE exhaust cutting required for installation on some variants.
Manufactured from 304L aircraft-grade stainless steel and made in the UK.
