I've got a Jato 3.3 with the Resinator (I'm not sure if its the one for low end or high, it came with it) and I really like it. Sure, its a little loud but, that way people hear it comming so they can get outta the way when I lose control while pulling wheelies!! [X(] Seriously, I like it a lot. IMO its a good buy. I too am not sure about the other pipe, someone else may have a little more info on that.