[SpencerMH]

I wasn't aware it was that high, I run a jb4 so have logging capabilities as well as a boost gauge and I see 13psi as the stock tunings target psi in the mid range so I think you got lucky on something or it's a boost spike but I would think the high boost target would be stagnant and the boost you would see should be higher(closer to the highest programmed boost target) in cold weather due to being further from detonating, theoretically there should be a boost target and the dme would lower it or remove timing if the knock sensors told it too, so your predicament doesn't make sense to me, anybody really know why the op is seeing that? I don't think the denser air is the reason.