Seat Leon ST Cupra 300 (Non GPF Models) - Non-Resonated (Louder) Cat-Back Exhaust System with Polished Oval Tips BMW > 4 Series > F82/83 M4 Coupe/Convertible & M4 Competition Coupe�� (Non-OPF equipped models only) > 2014 to 2018 As the GPF/OPF almost acts

As the GPF/OPF almost acts as a secondary catalyst

A black bezel and black dual-faced faceplate for air/fuel and Lambda are included

Note: The fitted images show the sports cat version

with just a subtle hint that there is over 300BHP available at the press of the right foot

Seat Leon ST Cupra 300 (Non GPF Models) - Non-Resonated (Louder) Cat-Back Exhaust System with Polished Oval Tips BMW > 4 Series > F82/83 M4 Coupe/Convertible & M4 Competition Coupe�� (Non-OPF equipped models only) > 2014 to 2018 As the GPF/OPF almost actsOur range of Cat Back systems are perfectly suited to cater for anyone looking to improve their sound and aesthetics, designed as a direct replacement for the original system, available in multiple configurations enabling the owner to choose the increase in volume of their exhaust and or add a more suitably aggressive tone. All our products are made from 304L Aircraft Grade stainless steel. This quality material will ensure that your Cat Back system