2000 gt ZZP down pipe install

i am getting ready to install my stainless zzp downpipe. am i going to have a hard time with rusted bolts? what if i break a bolt? i am hoping since it is a 2000 it wont be that hard like the 80's cars iv'e worked on. i am looking for any feedback or opinions since i am pretty scared that i might be opening a can of worms.

grab some PB blaster and start soaking the bolts right now.