QUOTE(wanfauzan @ Sep 6 2013, 02:56 PM)
you mean the hose before the airbox?
thinking of this, it is better to put the heat wrap/shield at the heat source, in this case, extractor.

QUOTE(V12Kompressor @ Sep 6 2013, 02:58 PM)
both the hoses before and after the airbox. meaning, the hose from the front grill and the hose leading into the throttle body from the airbox.
Yes, wrapping the extractor with titanium wrap will be a much wiser and economical choice.
Wrapping the extractor is 1 of the way but the problem with wrapping is that overtime the extractor will crack due to the wrapping when got water it get soak and the sudden change in temperature cause the crack. After you wrap up the extractor very hard to find exhaust leakage also because cannot see.....
Pros. safer working around extractor with wrap and the sound of the extractor gets toned down also....personal experience....
I think this wrap will causes unstoppable itchiness if wrap without wearing gloves..best is to wash the wrap 1st then leave it overnight and do wet wrapping also from my personal experience of using such wrap...
Best is still to do ceramic coating....http://www.cerakotehightemp.com/finishes/C-138Q/