Bring the maximum power out of your exhaust system with the MACH Force-Xp secondary muffler bypass for the 2012-2014 Porsche 911 C2S 991 with H6-3.8L engine. These muffler bypass pipes are used to remove the secondary mufflers that are tucked up in the rear quarter panels reducing weight and improving performance. The muffler bypass pipes are straight through eliminating any muffler packing or baffling. Constructed of 2-1/2" mandrel bent 304 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's. This system uses factory mounting locations providing stability and hassle-free installation. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility. MACH Force-Xp 409 Stainless Steel Muffler Delete Pipe Porsche 911 C2S (991) 12-15 H6-3.8L Porsche 911 C2S (991) 12-15 H6-3.8L