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      11-19-2012, 04:58 PM   #42
First Lieutenant
hetzle's Avatar

Drives: E90 335i
Join Date: Dec 2011
Location: Los Altos, California

iTrader: (0)

Turn the boost overlay on and check to see that you're hitting 12.5 psi, stock is ~9. You won't feel a huge difference between 3.5psi, but the power is definitely there. I had the same misgivings as you did when I first got it installed, I wasn't sure whether I gained much at all. After doing a few pulls through 2nd/3rd and then driving the car the next morning (oil cold, JB4 deactivated) I noticed the difference in power.
2011 335i sedan 6MT, Pure Turbo Stage 2, Motiv Flash, AA 4" DP, ER FMIC, AA turbo-back exhaust, Quaife LSD, ST Coilovers, BMS Intake, UUC DSSR+SSK, ER CP, BMS CDV, BMS OCC, Arkym CF trunk