I have a slip head high elevation (8000 +) off my 2010 skidoo I had, I've sold the sled now need to sell this. Slip claims a 2.5 peak horsepower with gains of 6-11 horse thru the mid range will work without any other mods. Brand new this is $375 I'm looking to get $250 shipped or best offer please pm me for any questions ( works on all 08-13 800 Carb motor )