APR's A4 Exhaust is a complete stainless steel,
mandrel bent, cat-back exhaust. On an A4, the catalytic converter
is bolted to the turbocharger and then the exhaust begins with the
downpipe. Unlike most other aftermarket exhausts, the APR exhaust
includes a 2.5" downpipe. The exhaust then continues back to
the innovative center muffler, where it splits into dual 2.25"
pipes. Each of these mandrel bent pipes goes to its own muffler
with a 3.5" rolled, round tip.
This exhaust is very quiet and simply changes the tone of the exhaust
to a deep, unobtrusive sound. With TIG welding, fully stainless
construction, and CNC'ed hangers, you will not find a higher quality
system on the market.