3-Inch T304 Stainless Steel Performance Downpipe w/ Cat

The Unitronic UH001-EXA is a high-performance 3-inch downpipe engineered to optimize airflow and performance for 2.0L TFSI FWD vehicles. Constructed from premium 3-inch T304 stainless steel mandrel-bent tubing, it is designed for longevity and resistance to rust. The unit features T316 stainless steel V-band flanges for a durable, rust-proof connection, and a 4-inch corrugated stainless steel flex section that allows for engine movement without stressing mounts. Equipped with a 200-cell metallic matrix high-flow catalytic converter, this downpipe minimizes power loss while ensuring maximum efficiency and flow, positioned at the factory catalyst location for optimal warm-up strategy. The fabrication is TIG welded for professional quality, ensuring longevity and leak-proof connections. This downpipe is specifically for vehicles with TSI engines only (engine will be stamped TSI or TFSI). It is not for sale or use in California on any pollution-controlled vehicle, as per the California Air Resources Board. It is compatible with Audi A3 8P FWD 2.0T, Volkswagen Golf V 2.0T, Volkswagen Jetta V 2.0T, and Volkswagen Passat B6 2.0T models.