
This Milltek OPF/GPF bypass replaces the factory particulate filters on OPF-equipped G8X M3 and M4 models with a single 102mm (4") mid pipe and Milltek's Z pipe, freeing up flow and adding volume to the S58 soundtrack.
Choose the version to suit your car: one connects to the original BMW axle-back, the other to a Milltek Sport axle-back system.
Please note: this is a race product intended for off-road/motorsport use only. Removing the OPF/GPF is not road legal in the UK, and the car may need an ECU remap to run without fault codes.
Features
- Single 102mm (4") mid pipe replaces both OPF/GPF units
- Milltek G8X Z pipe included
- Chassis brace plate included
- Adapters to suit the OE axle-back or a Milltek axle-back (depending on option)
- Made by Milltek Sport in the UK from stainless steel
Fitment
- BMW M3 / M3 Competition Saloon (G80) – OPF/GPF equipped cars, 2020 on (inc. xDrive)
- BMW M3 / M3 Competition Touring (G81) – OPF/GPF equipped cars (inc. xDrive)
- BMW M4 / M4 Competition Coupé (G82) – OPF/GPF equipped cars, 2020 on