BMW F32 F33 F36 440i RESONATOR GPF/PPF DELETE

Fits both PPF and earlier pre-PPF models - requires mandatory ECU reflash when fitted to PPF models. Fitment to PPF-equipped models is for motorsport and off road use only. This BMW 440i performance exhaust is made in 3inch/76.2mm pipework and fits from the catalytic converter section to before the rear box replacing the whole centre section. This exhaust makes the system louder as it removes the standard resonator or PPF filter on later models and both resonators on earlier models and therefore, offers a significantly sportier exhaust note. All relevant fittings and gaskets are supplied for fitment and to revert back to the standard exhaust. Fitment to later 440i models which have the PPF filter as standard will require basic engine tuning at time of fitment to cancel the EML light. Fitment to PPF equipped models is for motorsport and off road use only.