| Fabspeed Motorsports' exhaust systems are constructed out of heavy duty T304 stainless steel and come with a lifetime warranty against breaking, cracking, or splitting.Both Single and Dual Outlet Sport Exhaust work well with your current and future performance upgrades and improve throttle response while lowering engine temperature. This exhaust is the only system we know of that adapts from Single to Dual outlet and back again. • Fabspeed claims an increase of 15 horsepower, with up to 28 hp when combined with chip and cat-bypass
• Single or dual outlet: simply cap-off the right side outlet, and install a bolt-on secondary outlet tip when you want
• Simple bolt-on installation
• "Cat back" - no effect on emissions
• No annoying resonance and vibration
• Mirror-polished show car shine
• Super strong stainless steel, double-wrapped muffler case
• Deluxe tips with all systems
• True dual outlet system Have a look and listen to these Fabspeed videos for more info:
911 Carrera Muffler Information Video
911SC Single Outlet Muffler Video
911SC Dual Outlet Muffler Video | 
