Tom,
That sounds awesome. The Magnaflow is really a great sounding muffler. Again thanks for the idea and inspiration to build mine that way. It really sounds awesome, and I was also tired of the duals that I had on there previously. I have the stock manifolds on mine and I was able to rework the two exhaust pipes that I had, then I used two 90's and like yours right into the muffler. I have 2" in and 2.5" out.
For the exhaust pipe, I used to two 2.5" 45 degree bends, and then a straight pipe right out the back. If the fumes get to me in the winter, then I will cut it and send it out the side with a 90 bend. However I really like the look of the straight pipe for now and I am running without a top so the exhaust fumes should not be an issue.
Thanks again for helping me figure out what to do with my exhaust.
Rich