Haha it is so fun though
Boost could very well be spiking to 28-29psi but I've been trying to watch the road when it 'hits' for safety
The gauge and BoostEst were dead on at 20psi, I'm not sure why it would change with cranking up the boost other than a leak, I'll have to do a leak test this weekend and also get some other things fixed up. The gauge is a Defi D-gauge, I'd say they're pretty accurate at least based on reviews and all, but I'll have a MAP sensor soon anyway.
All in all I'm very pleased with this setup, I had a 14b prior to this and I honestly don't mind the difference in spool at all, very tolerable. I'm just going on experience as far as open downpipes hurting spool, I ran an open downpipe with the 14b and the car felt much more sluggish on the low end compared to being routed into the cat-back but that could have just been off-boost.
I'll be looking forward to logs from everyone, and I'll surely post more as I begin to tune this thing