Before you ask. I checked for boost leaks.


I have a cobb v3 ive been running and I have a Protune loaded on there.


This is the story.
Bought the car, Bought all the parts that were on the car previously, one by one, ran stage 2 and it peaked at 27 psi.
Finally put on the ams test pipe and ran the protune that was made for the car and the dyno sheet says peak boost should be at 26 psi.


Im running the protune and it only hits 22 psi max.


What should I do?
I will check again for boost leaks

 

If there is no boost leaks and your not hitting target boost the tune is off. Waste gate duty cycle would need to be raised