Non-Resonated (Louder) Race Cat-Back Exhaust System with Burnt Titanium GT-90 Trims Model_JCW (R57) Convertible (2009-15) without compromising on day-to-day usability

without compromising on day-to-day usability

Example of the BMW M4 Performance Exhaust (Valved Secondary Cat Back Exhaust)

The replacement pipe & turbo adapter allow for increased airflow and removes the factory noise resonators unlocking some additional turbocharger intake noise

Firstly parts are balanced at slow speeds up to 2800RPM in multiple planes using our single parts machine

Maximum boost pressure 2

Non-Resonated (Louder) Race Cat-Back Exhaust System with Burnt Titanium GT-90 Trims Model_JCW (R57) Convertible (2009-15) without compromising on day-to-day usabilityOur 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