WD40 that bitch up.... Seriously get it everywhere have some fun with it... Thats the way I got mine off last night without a breaker bar even after coming home from the gym....The exhaust is coming off for two reasons. 1. converter on drivers side fell apart and is making a hellified rattle. 2. I am replacing with hi-flow cats and x-pipe.It was already aftermarket so there is no warranty to try for. I had the car up on jack stands. I had my 15mm deep socket on the nut and a cheater bar on the handle of my ratchet. I twisted the end of one of my Craftsman extensions. Whoever put this on must have used an impact because I am fairly strong and these nuts would not budge.I am just about as pissed and disappointed as I can be, if I can't even do this then I sure as hell ain't ever going to turn wrenches under the hood.
so bottom line.... I should be able to get it off with normal tools... Maybe I will try again tonight after I get my extension replaced... thx guys