Milltek80mm OPF/GPF Back SystemFitment: BMW X3 G01 X4 G02

Overview

Milltek OPF/GPF back exhaust system engineered for BMW X3 G01 and X4 G02 with S58 engine. Direct factory fitment using OEM hangers and mounting points-no modification required. Hand-finished T304L stainless steel construction with mandrel-bent piping throughout, paired with GT-115 titanium trim finishers for visual impact and thermal efficiency.

This system bypasses the OPF (Gasoline Particulate Filter) and mounts directly to the secondary cats, delivering measurable performance gains and refined exhaust note tuning without excessive drone. Engineered for both street and track use, with resonance-optimized silencer design.

Details

Fitment:

• BMW X3 G01 (2022+)
• BMW X4 G02 (2022+)
• Requires S58 engine (M40i models and above)

Designed and manufactured in the UK with 40+ years of performance exhaust heritage. Tested at the Nurburgring.

Fitment