That AFE is holding power back on the GH Hot Street tune. My Job 2, '09 kept pegging the filter minder closed once I loaded the tune, even in third gear before the converter locks in fifth.
It could be a combination of modifications, but I am still on the stock turbochargers and stock IC. I have basically all the air mods (IC pipe, EGR delete elbow, 4" downpipe) that are practical currently without major service along with a built trans and an RCD converter. Probably lowered my EGTs with a larger air intake now, but I have not bothered to check.
As to the boost, I think I saw 41psi when I had my SCT as my gauges. The blue display is terrible on my eyes and I have yet to buy an Edge Insight. The numbers were all okay with my driving so I just tossed it back in the safe.
Hope it helps.