ProCore 6-Inch 400CPSI Downpipe

The Integrated Engineering IE ProCore Downpipe is engineered to enhance the performance and sound of your Audi B9 SQ5 3.0T. Its core advantage lies in the IE ProCore Catalyst, featuring a specialized tri-core design and advanced coating that allows it to pass vehicle readiness monitors without triggering a check engine light, ensuring a smooth integration with your vehicle's systems. This high-flow 6-inch 400CPSI catalyst is designed to support significant power gains, accommodating upgrades up to large and hybrid turbochargers. Constructed from premium T304L stainless steel, the downpipe boasts an investment cast body that smoothly transitions exhaust flow from the catalyst to the dual 2.5-inch mandrel-bent exhaust legs. All joints are meticulously hand TIG welded using precise fixtures, guaranteeing a seamless, leak-free fit and lasting durability. The advanced 3D scanning and software used in its engineering ensure perfect, factory-like fitment. Installation is designed to be straightforward, typically taking 2-3 hours, and requires no cutting, welding, or permanent modifications. For a stealthy look, factory heat shields and engine covers can be reinstalled. Dyno testing on a hybrid turbo-equipped B9 S4 demonstrated substantial power gains of 45HP and 41 ft-lbs to the wheels. Please be aware of the California Proposition 65 warning regarding cancer and reproductive harm associated with this product.