Originally Posted by
pee vee
Stack gauges. simple, reliable, accurate, and look nice.

(and not as much money as you think, £50 I think for a 'mechanical' boost gauge )
Pay the few extra quid and get the Stack electronic version. It also reads upto 2.5 bar and doesn't show annoying vacuum.
Like this:
http://www.jjcraceandrally.com/Race_...ctrical/69/413