I dont think you understood what I said.
I said id wrap an exhaust manifold, but the stocks are ment to be good for 300awkw anyway.
Exhaust system goes as such
Chamber -> Exhaust Manifold -> Turbo -> Dump pipe -> Front pipe -> Cat -> Catback
As far as wrapping a front pipe, well, let me put it to you this way. When I made my turbo/manifold glow, it was glowing bright red, but the dump pipe was not glowing at all. This suggests that most of the heat is in the turbo/exhaust manifold, meaning it makes sense to wrap these things and not the front.
Protection? Mate, if you sratch a steel pipe, it doesnt affect performance. Its not like 2mm of fabric would protect it anyway if you were doing decent damage anyway (aka, hitting a rock or something)