hey guys i have a big twin turbo build going on with my 04 ctsv and just hit a big snag.

i hooked up hpt pro to get started doing some small changes to the tune be for i take the cat to my tuner. in the OS tab it only offers 1 or 2 bar map.im sure im going to need the 3 bar option to make the power im aiming for.
do i need to change the ecu? if so what ecu can i use that supports the 3bar option and will work in the car?
is it going to cost me extra credits to change the ecu to my vin?
if i cant change the ecu could i just rescale the tables for the 3bar with less resolution?

im super lost here

-alex

 

EFILive supports 3 Bar for that car...

 

i thought that the ecu was the imitation for the 3 bar? hpt wock with 3 bar on othere ecus but just not mine? id do efi live but i have the hpt pro already and i dont need 2 tuners.