Was Wed night into Thurs morning but I replaced my catalytic converters so I could get my inspection. The four bolts into the manifold came out easy enough but I could not get the two nuts off the studs on the muffler end. I ended up dropping the skid plate and when I put the breaker bar on them they snapped the studs so I had to beat the studs out and use bolts. by the time I was done getting it all back together it was 1:15 am and 33 degrees. Drove it the next day and the front yoke was slapping the new pipe a little so I got back under there, loosend up the manifold bolts and clamp and used a prybar to move the pipe over. Its as far as it will go now, the heatshields on the upper cats are against the engine block, so we'll see if it bumps anymore and if it does I will have to dimple the pipe a little with a bfh. By the way, the codes I was getting were P0421 and P0431, was definitely bad upper cats, they were hollow when I pulled them off. I got the cats from eastern catalytic, i have seen some mixed reviews so I am keeping my fingers crossed. My biggest regret is not having a replacement skid to get rid of the shovel as long as I had it removed anyway.