hey all...im building up a b20 turbo, and i know all of the mechanical things i need. Now im just confused about what engine management to run, and what kind of sensors i will need. Im looking to make 550 to 600 hp, so i know i must have to replace some of the sensors and what not. i know the stock MAP wont read past 11 psi or something, so im gonna go with a 3 bar i think..would that be enough? and i was looking into the accel dfi unit for mangmnt...anyone have any info or experience with that? i have hondata s100, but i dont know if theres enough tunability with that..basically, i just want to know what mangmnt. and sensors i will need for that kind of power. and, will i need to replace o2 sensors with widebands ? i know theyre easier to tune too...