About to go get a hole in my exhaust manifold welded tomorrow. My exhaust is pretty loud. I have one of those megan "high flow" cats/resonators laying around the garage, is it worth getting it welded in to my exhaust? I'm not really concerned with losing 1-2 hp... just want to get the exhaust a little quieter. It's about 14 inches long, planning on welding it in somewhere in the middle. Any help would be appreciated.

 

If you have it, go for it. Always nice to stay legal.