dont see much point in this at all.. i dont see any good enough reason for it at all. the temperature of the air that goes through the turbo when the turbo is that hot, isnt really going to make a difference at all on a turbo aspirated car... and as for the valve lasting longer if you have a 007p they have a good guarantee and supposed to be serviced anyway with the service kit, what else could possibly go wrong with them,, its a piston and a spring with a few seals..
this mod isnt going to make any difference as already said no noticeable difference, id go for a tip or boost hoses, filter, air feed or something along those lines that will improve performance.
its defiantly not worth £ 100. no point in this mod at all think a few others might agree aswell but might be mixed opinions