6343 - Full Mod FAT BOY 46cc / 47cc Reed Case Engine - Primal RC MT This pipe was exclusively designed

This pipe was exclusively designed and dyno tuned around our engines and there is not a better performing pipe out there for an OBR engine

mid range and the ability to walk just about any motor down on the long tracks

We are seeing quite a bit more torque and rpm&rsquo

Piston reliefs help reduce the chances of the piston seizing on the exhaust side of the cylinder when running lean or hot

New 27cc CY 2 Bolt Marine Cylinder W/Square Water Jacket

6343 - Full Mod FAT BOY 46cc / 47cc Reed Case Engine - Primal RC MT This pipe was exclusively designed46 47cc reed engine for the Primal MT. You have the option to add a mounting kit and exhaust header to make it a complete package that is ready to bolt up and run. Mounting kit is required to install the 46 47cc reed engine. Our exhaust header requires use of the stock pipe. We hope to have a complete tuned pipe in the near future. Engine comes complete with clutch, HDA 223 carb and v stack. Intake tract, reed valve and transfer bowls were in house