Our best performing 858 kit! making 50+ HP midrange gains and an an...
Turn your 858 into a rocket with this stage 2 kit! making 40+ HP...
Our stage 1 is no questions asked, the best bang for your buck in the...
PREORDER The ONLY aligned Belt drive assembly on the market for the...
Our Billet Head for the Arctic Cat 858 is an easy way to bolt on some...
PRO-COOL billet heads bolt on some serious power for your snowmobile. The low altitude versions provide extra cooling capacity; they look great, and bolt on power. They add 4-5 peak horsepower with a lot of mid-range grunt too. PRO-COOL heads run on premium pump gas, 91 or higher octane. This high quality machined kit comes with a billet head cover and... PRO-COOL billet heads bolt on some...
Keep you cylinder head looking stock but in reality, IT'S NOT!! We now offer Cheater Head kits for the Ctec 800 Models. Keep you cylinder head looking stock...