I finally got my H pipe on. It sounds awesome! Feels more powerful too, but I can't say for sure. When I took the stock H pipe off (which weighs a ton) I did not see any gasket or anything on the passenger side. Is it possible there was not one there? I was planning on re-using the origional, but since there was not one there, I used the one Mac sent. How long can I expect the Mac gasket to last? Also, if I weld the H part together (instead of using clamps), will the whole H pipe still come off the car easily?