Without giving away any secrets, which tuner gets the best hp and tq numbers without raising the boost over 1.0? Certainly 1.0 is clearly safe on any gas and shouldn't effect longevity, who does the best job of maximizing power safely? I have no idea from the numerous posts how much giac, stage I,II, III etc. upsolute or any other tuner raises the boost to achieve the power. Can anyone help. Fish

 

GIAC level 1 or 2 also do not exceed 1.0-1,1 bar I believe....
Installing a Fabspeed alone should get you 40HP and raise your boost by 0.2-0.3 bar

 

I vote for Protomotive. I regularly run 1.0 bar for reliability purposes, which yields approx. 650hp.

Who else can claim that?