Product ID: KNCD100002
Price: $1,499.00USD

APR stainless steel, mandrel bent, cat and downpipe replacement for the S4 is $1499.

APR's S4 Cat and Downpipe Exhaust replaces the the exhaust from the turbochargers to behind the lower factory catalytic converters. The system removes the factory pre-cats right off of the turbocharger and includes six separate components. Included are the two pipes off of each turbocharger, a set of pipes with catalytic converters, and a set of test pipes without cats. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market.