Audi 4.0T Catted Downpipes - S6 S7 RS7 A8 S8

Great product, great price and even better customer service!

Arrived faster than expected

AWESOME DOWNPIPES | 2013 S7

Overall performance, super happy with them. Sounds much better, response on these are awesome. Paired with an APR Stage 1 ECU and TCU. Have not updated the intakes yet. If experience holds ups, I will updated with ARM intake. Things to understand, in my experience with this: - The gaskets that came with the ARM downpipes, much thicker than the factory - both of mine split between the turbo and downpipe - replaced with factory gaskets - Need the Extension to get the CEL to go away - be sure to cross the extensions from left side to right side, and right side to left side for the rear O2's as this is how factory works - I had to have my extensions repinned as the wiring was incorrect Once I replaced the gaskets, ensured the extensions were crossed over, and repinned, everything has been fantastic. No CEL. No issues. Would recommend.