Can anyone tell if the 440cc injectors on a WRX STI V5 my1999 are low impedence or high impedence? I am looking to up grade to 550cc injectors & have found some Denso that are high electronic resistance would these be correct? I think my injectors are phase 2 side feed injectors is this right? Do I need different electrical connectors to what is fitted to the car as standard?
Thanks Steve.

 

Yes you have phase two side feed injectors, and they are high impedence.

The connectors will depend on the specific injectors, but will most likely need changing.


Mark.