How to Properly Use Anti-Seize

[Need_for_speed]

I've searched this forum and others for guidance on how to properly use anti-seize, but I'm still a little confused and hope the collective wisdom here can help me clear things up. My understanding is that anti-seize should be used whenever we join two dissimilar metals, like aluminum and steel -- for example, aluminum brake calipers and steel caliper bolts. I also understand that anti-seize should be used whenever rust or corrosion is a potential issue.

However, what is the effect of anti-seize on torque values? I've seen recommendations that torque values should be reduced by as much as 30 percent when anti-seize is used on fasteners. Does Porsche recommend the use of anti-seize on various fasteners, and if so, do their torque values take this into account?

I'm getting ready to do some exhaust work, and want to make sure I'm fastening everything up per factory spec. Appreciate any insight.