Here's a guy who knows what he's talking about...
Asshole put my gauges in his car!! Tho he did pay me for em, so I guess it's okay. XDD
Get an Aeroforce, Wideband, and either a Boost gauge, or oil pressure, and be very happy.
Just remember tho...It's better to tap 1 wire, 1 time, then to mess up, and have a bunch of wires everywhere.