Exhaust help please

[NellySTL281]

I am trying to get my old exhaust off to put on my 3" catback but i cant get the fricken bolts off. After 4 hours, i finally got 1 nut off of the bolt that connects to the catylitic converter, but i couldn't get that bolt off! we used wd-40, liquid wrench, we even heated it and cut it too! any suggestions or tips on how to get these off? i have ran out of ideas. any help will be appreciated. thanks

 

[98gst62]

sounds like youve tried just about everything, let them soak over night with that liqiud wrench

 

[WatchItExplode]

Find somebody with an impact wrench, or get a really big breaker bar.