Hey, will a 2001 indy 340 exaust work on a indy 500 motor?.. a better question is would this create a dramatic hp decrease? the reason i ask this question is becasue i have a 500 motor in my 340 sled and the 340 exhaust just fits so well. i currently have the 340 exaust on the sled, and the sled seems to run fine but i am questioning whether it has its max hp? also if i need to install the 500 exaust where is it safe to cut the pipe, i know that changing the shape of the expansion chamber can affect the sleds performance. is it best to cut it just before the manifold or more towards the larger end. any help would be greatly appreciated thank you.