When removing rusted exhaust bolts heat, penetration oil and lots of patience help. On one truck put penetration oil (Kriol) every morning before going to work and when I got home. I did that for a week before I tried to remove the exhaust bolts. When removed the bolts I warmed the truck up before I tried removed the bolts. I was able to break the bolts loose when the engine was warm. I let it cool to finish the work. Obviously you need to be careful when working on a hot engine, but the heat helps. I have not done a Fiero, so I don't know how practical it is to get to the bolts when they are hot.
88 GT 5 Speed Black with gray interior
3800 SCII Swap Complete.
Detailing in Progress
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