Hi guys, I was looking around for a thread on peek boost for an STi with stage 2 and I couldn't find one. If this is a repost I am sorry please don't flame.

I have recently seen a lot of threads posted on iclub, iwsti and other forums where people are having low boost readings on their 04+ STi. I currently have an 07 STi with an Invidia 3' catless downpipe, 3' Cobb SS Catback system and I have a AP V2 on the way. Does any one know what the off the shelf APv2 should read as far as boosting goes with these modifications? People have seen as low as 14.5 and as high as 18 from the threads I have read. And once I get a protune at GST from Mike, how much more difference will I see from an off the shelf map running 91 compared to a protune running 91 from GST?

Thanks Guys!