aFe 49-42023 Mach Force XP Race Pipe Kit Compatible with Dodge Ram Cummins 2500/3500 Factory style hanger, band clap and pyrometer bung are included for a no-trouble installation This is a 'race only' product used solely for competition Includes a heavy duty flange that matches up to the OE cat flange perfectly and provides maximum flow for increased horsepower, torque and throttle response Increased air flow also lowers EGT'sand helps improveMPG