STM Audi RS3/TTRS Downpipe Spec-R We believe in form AND

We believe in form AND function

100 PSIg brass sensor included

Whether you drift

Since we are fabricating these in mass quantities anyhow

Includes two matching worm clamps

STM Audi RS3/TTRS Downpipe Spec-R We believe in form ANDThe STM 2 Piece 3. 5" Downpipe is the perfect addition to your RS3 or TTRS! Beautifully crafted in the USA, this stainless steel downpipe features a billet v band flange to mate perfectly to your factory turbo, full 3. 5" construction then merged into two 2. 5" outlets to mate up to your stock or factory style cat back exhaust. Three oxygen sensor bungs are included for the factory front and rear sensors as well as an extra bung if you choose to run