I got the 30FF while at the drags and using a Procede, my in dash boost gauge would not go over half way which was no more then 10psi so I assumed I had a boost leak. A few days later I changed from map 2 to map 1 then back to map 2 again and the boost level went back to normal. I am currently trying out the JB4 and I did some logs last weekend and it does appear that my boost is right on target.
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