Fabspeed 997 GT3 / GT3 RS Side Muffler Bypass Pipes (FS.POR.997GT3.SMBV) 1652 The Touring Edition is the

The Touring Edition is the sophisticated member of the B9 S4 exhaust family

Clean Air Act 40 CFR 1068

and identified their shortcomings

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Fabspeed 997 GT3 / GT3 RS Side Muffler Bypass Pipes (FS.POR.997GT3.SMBV) 1652 The Touring Edition is theOptimized design that replaces the heavy and restrictive factory side mufflers for improved exhaust flow, increased sound and weight savings. Available with or without valves. FEATURES: Fits all Porsche 997 GT3 GT3 RS vehicles (2006 2009) Replicates aggressive CUP car sound for the street 14 16ga T304 Stainless Steel construction Simple bolt on installation All Fabspeed performance products are backed by the Fabspeed Lifetime Warranty HELICAL VALVES: