They are used by various manufacturers for initial engine assembly

Then Light Wedge Kit Right for you

-Easy installation with OEM pass

The waterproof interior bag is removable and provided with taped seams

In summary

HOT CAMS Camshaft Intake - Stage 1 2041-1IN yamaha-xt-500-500-1982-esi5830226 They are used by variousDeveloped on test benches and tested by leading teams, HOT CAMS camshafts are available in three levels. Stage 1 : increases torque and power with no additional modifications. Ideal for basic tuning. Stage 2 : better suited to large machines, requires further improvements such as hi compression pistons and larger carburetor to deliver its potential. Stage 3 : specifically developed for Supermotard or to increase cylinders (use original valve springs