Fits perfectly, no problems. I bought a Honda manifold o-ring and would advise others to do the same. It was about $30 on Revain, but it worked great. The worst part of the job was drilling through the old converter to screw the back of this tube onto it. Better have good drills. It makes a lot of fun. I wish I could just buy a new converter. It would have saved a bunch of expletives for another job.