Direct-fit GPF and resonator delete for BMW M140i - cat-back, 3-inch mandrel-bent stainless steel. TIG-welded hangers, precision gaskets and all fittings included.
Removes factory resonator + GPF restriction for deeper tone, decel pops and a 7.5dB volume increase
Fits both pre-PPF and PPF M140i models; PPF versions require ECU reflash (off-road use only)
No full cat-back needed - this is the most effective single upgrade for straight-six character
Ready to fit or revert; designed for fast road or track day use, not daily driver compromise
