I was doing some testing with my new spark plugs and was watching the boost gauge and noticed my APR K04 software was not boosting as high as my K03 stage 1+ setup.

In 3rd and 4th gears it peaks around 16psi and holds at 12psi to redline and am wondering if this is correct or not.

 

I have a b5 with ko4-15 and pc-16 im boosting 20 holding 18.

 

i have a b5 ko4 non pc-16 i boost to 20-22 and hold 16