High-Performance Downpipes & Exhaust Systems Kits Downpipes & exhaust systems play an essential role in a vehicle's overall performance, efficiency, and sound. These components are in charge of channeling exhaust gases far from the engine, reducing backpressure, and optimizing airflow. The downpipe connects the turbocharger or exhaust manifold to the rest of the exhaust system, rendering it certainly one of the most crucial parts in...