Blitz Dual DC Turbo Timer
 

I'm interested in one of these because it has a boost display as well as a timer.
Is the boost display any good?
How does it work (tubes to the engine or direct to the ECU)?

For an MY03 UK STI if that makes any difference.

Got one of these for sale m8 its has a small hose running to a boost hose which senses how hard you been driving:D and sets the timer accordingly or you can just set it manually,they also have a lap timer,max boost warning again you set this i even have the loom for a bugeye its preety much just a plug in job

Alan m