I have a 2001 c5 and i want to upgrade to 2.5 map sensor with companion os but my latest version of hp tuners offers only 2 and 3 bar. if i install 3 bar i worry about less resolution, if i install 2 bar i worrry about loss of .5 bar on my map sensor. I both cases i want to run the maf to the limit this includes any patch to increase to 15000-hz limit also there is no patch showing in os options.
What do i do