flexible heat shielding - worth a try?

[Goran]

I have wanted to wrap my airbox in some kind of heat shielding material for ages. I just came across this,
http://www.gizmag.com/zircoflex-flex...-shield/12249/
http://www.merlinmotorsport.co.uk/p1...duct_info.html

A bit over the top I know, but I think I may give it a go.

Also another thought, my rear gearbox output seal is leaking again 2 years after it was replaced, I remember on Tyresmoke forum there was a theory that its due to heat from the exaust/cats, may be worth while heat shielding it too?