MadMitsi

I'm in process of getting my Evo 4 tuned, so far I've done Evo 5 ECU, 560cc injectors, 255lph pump, 10.5 evo 8 exhaust housing, upgraded lower intercooler piping, 3 inch exhaust. And I have loaded ceddymods on my ecu, would it be safe to drive around like this on around 10psi til I go on the dyno? also the ceddymods rom should have more aggressive ignition timing and fuel to support this? im a newbie to this.

GEP

i would suggest you to get it dialed in properly and tuned as "base" maps from ceddy never worked fine for me or my customers...