The Lee’s Performance Stage 5 Kit is for race bikes only. These kits are designed to get far more power out of your engine than factory engineers even imagined. Typical Stage 5 kits are a complete engine build. From top to bottom, we replace or modify many parts and..

The Lee’s Performance Stage 4 Kit is for serious riders that are ready for a whole new level of power. Built to race, these engine builds are great for street racing, drag racing, superbike road racing, and land speed racing. Depending on the model bike you own, the..

The Lee's Performance Stage 3 Kit is for riders who are ready to take their street or track bike to above and beyond your typical street bike. This package is excellent for street guys that want to show up all their buddies or track guys that want to build a strong, relia..

The Lee's Performance Stage 1 Kit is for riders who are ready to take their street or track bike to the next level. Getting an exhaust system, intake modification, and custom D..