There are a few posts warning about EGT after chipping. I stumbled across this product out of South Africa called EMS2.  An electronic unit that monitors water temp, oil temp, EGT, coolant level, voltage, oil pressure (or boost pressure).  For extra you can buy a kit with all the sensors and wiring harness.  Best of all it includes a EGR blanking plate with the plate drilled to capture the probe.  It works out to be about $500 for the unit and kit.  Can't come close to that price if you bought sensors and gauges individually.  Not to mention the dash looking like the cockpit of a 747.  
It's sold in Aust through Nata 
disclosure - I don't own one but plan to in the near future.
Nata enterprises
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