Working on finishing up the 2012 RMK Pro 660 big bore with self contained variable vain turbo charger with the Hm turbos water to air inter cooler for ex RIMSHA racer Shannon Barngrover. The sled is 4 pounds lighter and the turbo 6 pounds lighter. It should be equivalent to an 800 turbo with an additional 2 to 3 pounds of boost extra, but with more nimble feel. Hope to have it finished up and kit available to the public soon!