I see that there is only one 1000cc Stealth pipe (for both ZRT chassis). How large can you go and still run this pipe. Is 1100, 1107, 1108 too big? I do know of one sled that is 1060cc, flows a lot of air and runs these pipes with great success. I do know that these spin a little higher than a comparable D&D pipe. Any and all info greatly appreciated.