Strict factory particulate filters in the stock G42 exhaust restrict gas velocity and subdue the deep inline-six tone of the B58 engine. Replacing restrictive factory piping with high-flow Exhaust Downpipes directly off the turbocharger drastically reduces backpressure for immediate spool response. Elevate your coupe's acoustic note with a Cat-Back Exhausts system, an emissions-compliant GPF-back exhausts setup, or complete Tubo Back Exhausts. For track-only applications, GPF deletes remove restrictive filter media entirely, while aggressive Exhaust Tips refine your rear valance appearance, supported by our complete range of Misc Exhaust parts.