I just installed my aps bov. I did not adjust it at all. When I punch it boost will spike to about 1.4 bar sometimes even 1.5 bar, the max reading on the factory gauge, then drop immediatly to 1.2. this seems a little low. Is it just the factory boost taper or would I be leaking? I have a forge unos on the way I hope this will take care of my problem.

 

no one?

 

Did you boost leak test?

 

22 dropping to 17-18psi is about normal w/ factory boost control. Set your Unos to 21 and it should hold rock steady to redline.