I can't wait for the snow to go away so I can get to work on my car again. I am going to try and get the ypipe off, and at LEAST gut the easy side, and try my best to gut the other side. At least I won't need the mils. So, you gutted them and you couldn't tell the difference after you did it? That was the main reason why I haven't done it yet....I didn't want it to sound like a snowmachine on crank.