I just spent a better part of today changing out rotors and pads. The caliper bracket bolts were simply a PITA to loosen without a healthy dose of PB Blaster and a breaker bar, especially the rear ones. Did the same on the a previous FX35 I owned and it was nowhere near this tough since it was a SoCal car. I reckon cars that live in colder climates are more suspect to nuts and bolts rusting and seizing up. In looking at the bolts for the exhaust, I may end up taking it to the shop when I pull the trigger on the Invidia exhaust because the stock exhaust with all those seized/rusted bolts isn't going to be fun to remove while laying on one's back.