I am about to buy a magnaflow muffler and the Y pipe for my 2012 1500.
Speaking with the guy who is going to install it he said with the bends in the factory set up and being so close to the tranny it might be a pain to add a new Y pipe. I know you guys have it done all the time and I was wondering if any of you had good pics of how you installed yours.
Here's how I did mine, got rid of the factory y pipe, the crushed pipe crossover under the transmission, and moved to allow for easier trans removal. I also originally intended to run a deep trans pan(can't do with stock crossover) but since changed my mind.
I welded most of it but left it clamped in a couple places so I can pull it all off without cutting it.
It's a small gain. I did it because I could do it cheap by doing the work myself, use the pipe I wanted with mandrel bends, etc. I would have liked to get SS but I went with galvanazid as it's much cheaper. Everything from the y back is SS, but from the manifolds to the y I used galvanized(SS mandrel bends are expensive). I might make headers down the road so if I do that I'll replace with SS. Also, I'm in florida so corrosion isn't bad like up north, I think the galvanized will last a long time. I sprayed the welds with high heat paint since they burn the galvanizing off.
Another main reason I did it was just to relocate the crossover to behind the transmission.
I personally wouldn't pay a shop to use mild steel, crush bends, and charge a couple hundred bucks to install it. But I don't like to waste money...