Make your Ninja 400 the ultimate racing machine with the Ninja400r.com Superbike Head Kit! Carefully tested and developed, Ninja400r.com has added the Superbike head kit to the market which adds a variety of modifications to increase power to the ultra lightweight bike’s motor. The options include Head Porting and Polishing, High-Performance Drop-In Cams, High-Performance Velocity Stacks, High-Performance Ram Airbox, or the whole package will optimize the potential of your 400 and add up to 25% over stock!
- *Up to 25% gain using all 4 components!!!
- NOT CA street legal, may only be used in closed coarse competition.
- +5HP peak with the Drop-In Cams ($200 core refund when you return stock cam)
- +2HP at 10,500 rpms with the Velocity Stacks
- +1.5HP across range with the Polished and Ported Head (Uses customer head)
This high-quality performance package can gain your ultra lightweight bike up to 14* horsepower over stock! Be the fastest in your grid with better acceleration, more torque, and higher top speeds!
*All motorcycles perform differently, this was the performance gain our 2018 Ninja400 model had during testing performed in San Diego, CA 75° weather, SAE corrected. We expect your Ninja 400 to have similar results if it’s well maintained and not built at the factory on a Friday at 4pm or Monday 5am after a World Cup match.