MBRP - got one, love it... the SPI sounds mean with it and a CAI / short ram intake.
That Helixmonkeylicker whoosawhutsit. Ditch it.
The SCT is a good idea, but go either multi-tune or just XCal 1/2. As you mod you're going to want to re-flash to take advantage of new gains (TB, UDP, PnP, etc).