Gr.5 titanium valve springs for yamaha gp 1800r svho jet ski supercharged 4-cylinder waverunner 1800r hp
Item | customized Titanium valve spring retainers |
Materials | GR5 GRADE5 Ti6AL4V Titanium |
Sizes | customized sizes diameter, degree hardness surface |
Function | increase horsepower for cars , motorcycles, pwc, snowski etc engine performance. |