I did some fabricating on my exaust headers and the hpipe so that it will be a direct fit into the end of the header pipes like how it supposed to be.I had to remove inner tubing from the hpipe so it will slide over the tubing that inside the headers..It had formerly been rigged together with exaust sleeves,reducers and ubolt clamps making it looked like crap along with having a number of exaust leaks.