The ASR Engineering Porsche 997 TT Performance Exhaust System is built from precision tig welded polished T304 Stainless, uses an internally stainless steel 200 cell high flow performance catalytic along with an x-pipe strategically placed for air flow balancing purposes, and is only 3 decibals louder than a factory exhaust cruising at 70mph.

Average hp and tq increase is 25-30whp.

Price $3895.00