Just a heads up to all who may want to install additional aftermarket gauges in connection with turbos or superchargers and do so other than via a-pillar pods or dashboard top housing units like the CDC model or Auto Meter models:
Roush has released a new product that fits 2-1/16" gauges into your dashboard vents while still maintaining the functionality of the vents themselves. It allows all of the wiring to be "funneled" through the vents for an almost "invisible" installation except for the actual gauge faces peering out at you.
See their website for pics of installed vent pods:
ROUSH Performance: Mustang</br>2004 - 2008 F-150 Vent Gauge Pods Detail
Cost: about $30.00 a piece.