Well how's this for a first post I have a 2000 Xterra with a clogged cat I'm not sure if it's going to fully clog going a couple hours home so I need emergency fix advice right now. The car will get up to speed babying it but of course putting your foot in it is futile. I was going to hammer a couple holes in it but I'm open to suggestions. I think I saw somebody mention on one of the forums that the 2000s unbolt? The cat that I think is plugged looks like it's the front right attached to the driver's side block head galley under the intake manifold, and the back pressure is pushing a little oil out the bottom of the rear valve cover. I guess I can't be sure it's not the rear cat but I looked under there and thought I only saw a muffler so? Fairly new car to me bought it today and need to get home. Any advice greatly appreciated !