This BMP Full Velocity Muffler is perfect for those of you who want a quiet (around 5-6 dB louder than factory) yet extremely free flowing muffler

installing a portal gear lift

Making an additional 5 HP this system can't be beat

A great modification to get more air and more power is to modify your airbox

We took our time to develop this pipe that makes the most horsepower possible

Big Bore 2150cc / PROR Select Displacement:2300cc Big Bore Stroker This BMP Full Velocity MufflerThe Bikeman Big Bore Cylinder is a big upgrade for massive na power or building on top of the engine with a turbo. Big Bore 2150cc Bored and Sleeved Cylinders Custom Big Bore Pistons 93mm bore = 2. 13L, 96mm = 2. 26L Comes with Pistons, Rings, Wrist pins, circlips BIG BORE 2300cc STROKER KIT Bored and Sleeved Cylinders Polaris Pro R Includes 4340 billet crank, 78mm stroke, BC ProH2K rods (4. 915" c to c), custom CP or BME pistons (choice of bore