This is the replacement exhaust manifold(header) for the RC10GT without pull start. It is shaped slightly different than the one for pull start kits and they are NOT interchangeable. Constructed of aluminum. This is a 180 degree header which routes 180 degree header which routed the pipe to face the front of the truck Will bolt onto most popular .12 size engines (O.S., Yokomo, HPI, Dynamite) This header has a slight upward angle (about 10-15 degrees) Inside diameter: 1/2" Outside diameter: 9/16" Distance between mounting holes: 1-1/16" One header One header gasket (ASCC8934) ++MORE++ May require additional items, depending what the customer has: Silicone adapter (ASCC8933) Mounting screws for O.S. & Dynamite (ASCC8938) Tuned pipe (ASCC8930) WAJ 5/29/94 ;) ir/le &