I bought a muffler that has a 2 1/4" inlet. I was under the impression that the stock pipe was 2" but when I measured it, I got 1.820" or something like that. I was using a dial caliper on the outside of the pipe. My stock muffler is blown out (literally), and I wan't to replace it myself. But since the Rex is my driver, I need to have everything on hand when I do it. I was gonna get a pipe expander, and get an adapter too. But if anyone has dealt with this before, I would really appriceate the info.

Thanks.