Well for one the boost and meth now work together in harmony before I would shoot to 7 psi lag a little then it would throw you back as it went to 17 psi.
Im running 19 psi right now with very little taper of boost till about 5k rpm and it feels like train to 6500. The day before I could barely spin 2nd now I can spin 3rd
-Throttle response is incredible
-lag.. What lag?
-much smoother and refined
-Diverter is very loud due to instant 10 psi with small throttle inputs.
-boost is almost immediate
-holds boost much better than before
-Feels like a different car seriously
I am officially happy with my n55!