We are proud to offer this hand crafted 2 muffler exhaust system for the 997.2TT®. We spent countless of hours developing a unique sound by testing various muffler cores along with muffler packing materials. We make the muffler from scratch in house along with our X design cross over. We do not use any over the counter pre made components. We offer this system with GESI Ultra High flow EPA approved catalytic converters. The exhaust is TIG welded and ported inside for maximum flow. During the final stage of production we hand polish to mirror finish. A 3″,2.75″, or 2.5″ OD tubing is available. Our X design exhausts have made astonishing 1000hp. Please click in the Dyno graph tab to see results.