Milltek OPF/GPF Bypass Single 102mm Pipe with Z Pipe - BMW G80 | G81 M3 | G82 M4

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