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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
2011-2014 Gas Gas EC 300E
engines are boosted to 100in
2007-2014 Yamaha YFM350 Grizzly 4x4 Auto
Multi-layer reinforced knee construction and grip texture for good on-bike contact
S&S Cycle 90-1504 Super Stock EVO Cylinder Heads - Black engine-pistons-piston-rings 2011-2014 Gas Gas EC 300ES&S heads give great performance now, and work perfectly with additional upgrades later. Kits are fully assembled, and include stainless steel valves and high lift springs (up to . 640 lift). Available in natural and black powder coat finish. Intake manifold, pistons and gasket kits are sold separately; gasket kits contain head gaskets, base gaskets and exhaust pipe gaskets (rocker box gaskets are not included due to the variety of available rocker
