Just bought some green cosworth 803 injectors for my rst efi. Can i swap my beige 701s straight with the greens and get it tuned at a later date, or get tuner to plumb n tune it at same time?

Another question, will the beiges fit my xr3i efi or do i need a chip to run them? If so wat chip??

Cheers

 

Cosworth greens don't work with any fiesta turbo management be it ofac or ofab mate

 

the map on the chip should be matched to the injectors, otherwise it will run like shit.

Over/under fueling.

Also are the injectors high or low impedance???

 

cossie are low fiesta are high mate.

 

Any chance i can use megasquirt or omex to run them? Or cossie management? Not sure on impedence, just a last second buy lol