I've got an 04' RXP that has alot of motor issue's. One of them being scared cylinders, making it necessary to bore them out. Another is a bad super charger that i intend to upgrade to the x charger. I have yet to measure how much larger i'll need to go, but let's say i needed to be 1.0 larger. I intend to add a rrfpr, would it also be recommended for me to upgrade to the 42# injectors as well. Will i need to do anything to the stock ECU?
What are most people using to measure their AFR?