Naw, it wasn't me. I managed to cobble something together.
Oh, yes go with a 2.5". I stand corrected about the 2" exaust, and I'm man enough to admit when I am wrong. (I have been wrong before. Back in 62: I thought I was wrong, but I was right:)
Anyway, my 2" exaust had rotted off at the back of the mufflers. I installed 2" tailpipes, and it restricted the engine quite a bit, compared to the exaust ending at the end of the mufflers. If I go with a new exaust, I'll definatly go with a 2.5".