Empi now offers a 1 5/8" Merged competition header system for use with special 1 1/2" flanged racing heater boxes. This lets you have the heater system and still have a high performance merged exhaust system. Header features thick HD flanged with ground flat gasket surfaces. All internal welds are ground smooth for a true high performance flow. Header are supplied with an Empi swivel flange racing stinger. Heater boxes have light weight inner coils to still generate good heater output while 1 1/2" tubing allows for less restriction on your motor. Then choose from heater boxes or 1 5/8" J-tubes to complete your installation. All components are available with ceramic coating finish instead of Black paint. In addition you can us the hideaway muffler or phat boy to get to and from the track.