that's a no no, you got a scantool as well?
well. dunno about those chips but a 2 bar map doesn't read further 14.7psi of boost and the ecms doesn't ad feul after that. but some chips had this problem solved with a 2 bar map so you could go to 18. but i would invest my money in an 3bar map and an adfpr and maybe a moates soo you can tune it yourselve. and the ultimates have a build in boost controller in it
the supporting higher boost is a bandaid in those chips.
the ultimates have more timing to pull and different feul tables etc so you are getting like 15 chips in one. and they are safer also.