What kind of side feed injector is this thing?

STi-zy Wagon

New member
Here's the injector from my version 4 STI RA.

DSC01826-1.jpg


I have a set of USDM STI 550 side feed's and they look nothing like this... And I need to replace/upgrade these and I don't know what to look for...

Does anyone have any advice?

 
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