Description
Riva, Waterbox,Ps,Yamaha 1.8L All ? Developed on our in-house Dyno and tested extensively on the water, this waterbox features radiused exhaust tubes and end caps for optimum exhaust flow.
- Developed on our in-house Dyno and tested extensively on the water, this waterbox features radiused exhaust tubes and end caps for optimum exhaust flow
- Delivers up to 15hp on modified engines along with significant torque gains
- Delivers up to 15hp on modified craft!
