Fabspeed Porsche 997.2 GT3 / GT3 RS Side Muffler Bypass Pipes (2010-2011) Select:Select Valve Configuration=Valved Valved controller kit included when

Valved controller kit included when you choose STANDARD EXHAUST

or quickly update your Accessport

Turbo/Turbo S /991

With perfectly optimized headers and EMITEC HJS German imported high-flow racing catalytic converters

Sport headers feature 1

Fabspeed Porsche 997.2 GT3 / GT3 RS Side Muffler Bypass Pipes (2010-2011) Select:Select Valve Configuration=Valved Valved controller kit included whenOptimized design that replaces the heavy and all very restrictive GT3 factory side mufflers for improved exhaust flow, increased sound, radiant heat, and massive weight savings. Available with or without SUPER PREMIUM HELICAL AEROSPACE Iso certified exhaust valves. FEATURES: Fits all Porsche 997. 2 GT3 GT3 RS vehicles 2010 2011 Replicates aggressive CUP car sound for the street no resonance no drone More power +9HP and saves 44 pounds 22 KG OFF the