Interchangeable O-Ringed domes allow you to adjust compression for fuel quality, elevation, timing or performance
Substantial increases in cooling efficiency
Product Note:Only fits machines with Pro Design Cool Head products.
Specification
Details
Bolt Pattern
4/156
Vehicle Fitment
Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.
