I have a 2006 Silverado 1500. I read somewhere that the stock PCM is locked at some PSI even though I can put a 3 bar+ map sensor. is this true or a sham? I really dont want to deal with having to setup a terminator

 

I have been told 14 psi is the max.

 

2006 will have the p59 which can do 3bar and e85