One of the guy's here was running a CTS in his OBS. While it reads some parameters pretty well just through the OBDII port, I would suggest getting he EAS 12-V supply Pack (Edge PN 98614). That pack comes with boost, trans, pyro, and 5v power switch kit (lights, fuel pump, etc). You do not need to use the 12-v power supply cable that comes with it since you have a OBDII truck. It also gives you the EAS cable so if you need to get additional sensors in a daisy chain. It's super simple to hook up. To me, it's the best bang for the buck then you can still read ICP and IPR% and what not through the OBDII and get accurate readings on the other things that normally don't accurately read through the OBDII (boost).
Like others have stated, I run one in my truck and love it. If i didn't already have a full pillar pod setup, I would just have the CTS2.