Downpipes for Audi RS6 / RS7 C8 / S8 D5 4.0 TFSI V8 are designed to replace stock catalytic converters. AXI Downpipes are made from T304 Stainless Steel and are fully TIG welded. They aim to improve exhaust flow and provide a more throaty sound. Both catless and catted (Downpipes with High-flow catalytic converters) options are available.
