Race Non-Resonated (Loudest) Cat-Back Exhaust System with Black Cerakote GT-90 Trims (For M340i Valance) Audi > S5 > 3.0 Bi-TDI B9 Coupe (Diesel) > 2019 and Later The default values will be

The default values will be adjusted to match the below:

Motorsport-focused design for controlled

5mm pipework and fits from the catalytic converter section backwards (Cat-back)

Please note if sending a used turbocharger for the upgrade process

Race Non-Resonated (Loudest) Cat-Back Exhaust System with Black Cerakote GT-90 Trims (For M340i Valance) Audi > S5 > 3.0 Bi-TDI B9 Coupe (Diesel) > 2019 and Later The default values will beOur 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