Pro Design PD308 Cool Head Dome - Standard Bore (22cc)

Billet-machined design offers noticable bolt-on performance gains. Increased torque and power as a result of increasing compression. Larger water jacket area supplies more water; you get the ultimate in cooling efficiency by eliminating overheating. Cool Head shells and Cool Domes sold separately to give you a choice of compression ratios. Features include O-ring seal (no gaskets required) and adjustable and removable compression domes. Race Gas Only.

Vehicle Fitment:

1987-2006 Yamaha YFZ350 Banshee