Introducing the MRT "MaxFlow" non-catted H-Pipe available for the 2007-2010 Shelby GT500 Mustang, the only mid-pipe exhaust system on the market with that muscular sound all performance enthusiasts love. The MRT H-Pipe deepens your exhaust note and improves the flow of exhaust gases by maximizing mid-pipe system volume. The MRT H-Pipe increases horsepower, torque and fuel economy while still sounding muscle car tough. The MRT MaxFlow H-Pipe is made of the highest grade 304 stainless steel, making it light-weight and durable for years to come. This system includes bell-mouth flanges for a leak free seal. All MRT H-Pipe exhaust systems feature CNC mandrel-bent tubing to guarantee precise, factory-caliber fit. Installation of the MRT H-Pipe is simple and drill-free. The MRT MaxFlow H-Pipe Exhaust clamps-on directly in place of the factory mid-pipe exhaust. Catalytic converters are NOT included in this offroad version. Please note that all MRT H-Pipes are custom systems intended for performance use. We make no claim of compliance with local, state or federal emissions standards. Please take the steps to learn about regulations in your area and use on main roads at your own risk. All MRT exhaust systems are engineered and produced by MRT Performance. NOTE: For the MRT MaxFlow H-Pipe for the 2007-2010 Shelby GT500 we recommend the purchase of one O2 Extension.