Ford Focus MK4 ST Estate/Wagon - Non-Resonated (Louder) GPF/OPF Bypass (For Fitment to Milltek Cat-Back) - Milltek Cat-Back

As the GPF/OPF almost acts as a secondary catalyst, we have provided the option to remove this component, similar to a Decat system. This bypass deletes the GPF/OPF, removing it from the exhaust system to better improve performance.