I bought a Dynomax cat back exhaust for a 4 door Blazer since it's cheap and I was going to cut it up anyways to fit my 2 door. The rear tail pipe is the same, BUT the hanger mount is in a different spot so it can't be used. The muffler that came with it was huge and wouldn't work since I had no room to put a head pipe on it. It looks like there might be issues with the rear shocks and the cutout in the frame when using 2 1/2" pipe. The only pre made kit is a Gibson, but I don't want to spend that much. What is everyone else doing?