Killer 8 said:Where can i go to get some 550 injectors? I tried google but it came up with mostly stock sites. Would it be chaeper to go with the extra injector instead and where can i find those kits at?
xtra injectors from MPNick is the way to go with the MPI. One of the highest whp Mazdaspeeds was done with stock injectors in the rail and xtra injectors before the throttle body. Or if you have more money, do 4 xtra injectors in the IM. Either way, leaving the stock injectors in will allow the car to run IDENTICAL to stock outside of boost. Then the xtra injectors provides the extra fuel needed as well as it helps to cool the charge air too.
I have passed emissions in MD and AZ with ZERO issues and with flying colors with ABSOLUTLY NO specific tuning. All because it runs as efficient as stock outside of boost.