i cant undo the three bolt bolts at the bottom of the exhaust on 1995 Toyota Camry

bolts are tight

Asked by for the 1995 Toyota Camry
Soak them with PB Baster for about 8 hrs. and spray them every couple of hrs. However exhaust shop is really your best bet, can't beat a good heating torch! It's better than ringing them off! What are you tring to replace?