i have a edge with attitude, and i am looking for some gauges for my truck. i know i want fuel pressure, but do i really need Rail pressure? i dont plan on super modding the truck at all. plus i hear on diffrent threads that the stock Oil Pressure guage is junk, should i get one? and how important is oil temp? on my WRX i have oil temp but its a small car and turbo. any help would be great!!!!!!! plus should i trust the Trans temp in the Edge?