Ladies. I currently have access to a nice big warm garage, so I'm trying to slam the rest of my y-pipe fitment issues before I'm working on my car out in the cold. And it's cold af in Alaska right now... I'm getting the last piece of the y-pipe welded up tomorrow by a professional, so I'm not stressing (much) over those results, but the middle of the 180, on the rear to-manifold pipe contacts the transmission a little and I want it to not do that. Before pulling the y-pipe tonight, I marked up the area of contact. I marked the approximate center line on the pipe (red), and figured out an area that would allow about 1/4 inch clearance (blue/green). So my question for today is how to achieve that specific crush on that area without fucking the whole thing up? The closest thing I've found to a tutorial on this particular subject was some random episode of engine masters (which was quite good actually - episode 4), and some halfass video on youtube - which I quit 30 seconds in because it looked more like some amateur blacksmith reality show than an automotive tutorial. After thinking it over, my most reasonable-sounding plan consists of making a die out of wood or whatever to fit and support the opposite side of where the crush will be, then heating the contact area and using a bench vice to make the crush. Alternatively, I could attempt to oval the immediate area - crush both sides equally with a die on each side. This method seems like it would be crazy complicated, and would cause a greater chance of ruining the overall fit. Has anyone run into this problem before? I need advice - theoretical or hard-earned.