My cousin bought a DG atvXtreme Pipe just like mine, but he doesnt know what jets he needs, i suppose it would be the same as with any other pipe but he also has a K&N. I cant help him because I bought all of mine at the same time as porting, etc. and HPD prejetted the Carb i bought with everything.so i dont have a clue. I know he should go up 1-2 on the main but maybe down 1 on the pilot. i just dont know what stock is. and we have to order them, because the dealer doesnt have any locally. so any help would be appreciated