Our head rocks on the new XP! We picked up 5 peak horsepower and 7-8 through the midrange. We will post the dyno sheets in the blog section so you can check it out for yourself, it really works great. This head kit provides increased cooling capacity keeps the motor running cooler, quicker throttle response, and a 4-5 hp gain. Low, mid, and high elevation domes are available. Kit comes standard with 2 domes, billet head cover, and complete instructions. A very noticeable increase in acceleration and throttle response without sacrificing reliability with premium pump fuel. Easy bolt on power that works!!
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