Ok i have a chip from bg im my truck and I need a vacume pump. Being the 2nd owner of this truck Iam not sure what all the chip was to change. I know that boost Is twice stock. But did they change fuel,timing, or trans. I like the boost setting of the chip. I plan on something like turbo master.

SO TO THE QUESTION.
Would there be a reason to leave the chip in or to change back? Would 1 way or the other offer better mpgs or proformance? (12 psi target I will miss the 16 psi spike.)

Last question . How dose this problem compare to your truck? Have you been there. what was the out come of mpgs and power?