I am going to be upgrading my car soon and I read somewhere that I should delete the u-bend and possibly the resonator in preperation for changing the pulley to a 3.4 and upgrade the cat and downpipe in the future. So I figured while I was at it I would do it all at once to make it easier. So what im planning on doing is getting a 3" downpipe with a cat and attaching a pipe to it in place of the u-bend and resonator and putting it where my old one used to be. My question is will that work, the reason I question my plan is because im not sure if i need to get something else in order for the larger downpipe to fit. Also if you have any suggestions or see any other flaws in my plan please let me know. THANKS!