Still waiting to get some definitive answers from anyone who has done the mod. I keep seeing answers from members who THINK they know how it was done, but I can't find anyone who will divulge exactly how they did it and what size x-pipe they used. What I'd like to know is if they slid the exhaust over the x-pipe fitting, or if they got a larger dia. to slide over the exhaust pipe, or did they get the exact size to weld the butt joint? Also, does the center-to-center on the x-pipe matter? And does it matter as far as the material used? If our exhaust is made of steel, could you actually weld SS to it, or would we be better off with the regular steel type? If I get my answers, I'll be going with one of the stamped Jones pipes. They are on par with the Magnaflow for nearly 1/2 the price!