4. Last but not least, the Zex doesn't have the separate components, it's all in one purple box that's solenoid, logic switch, etc. Where's the best real estate to mount that which will give me good access for the FPR vacuum? The car came with a CAI so there's some space on the PS apron...
To each their own, but I don't like seeing MSD boxes and such in the engine bay. You say it needs a line to the FPR, so that crosses out having the box in the car. Myself, I'm thinking maybe it could be hidden under a stock airbox(never was a fan of the look of those CAI). That, or maybe hidden on the outside of the inner apron, maybe where the battery sits.