Restrictive factory particulate filters in the stock F44 exhaust restrict gas flow and subdue the raw tone of the 300+bhp 2.0-litre engine. Fitting high-flow Exhaust Downpipes directly off the turbocharger drastically decreases backpressure for faster spool times. Elevate your Gran Coupé's acoustic signature with a Cat-Back Exhausts system, an emissions-compliant GPF-back exhausts setup, or complete Turbo Back Exhausts. For closed-circuit motorsport use, GPF deletes eliminate restrictive filter media entirely, while aggressive Exhaust Tips refine your rear stance, backed up by our range of Misc Exhaust parts.