RC 550cc injectors $120, free Hydra Nemesis 2.6
 

$120 shipped in the continental US. They should be good for most aftermarket ECUs but first check and confirm impedance (low?) will work before buying. Pictures can be provided, PM me. Email or texts preferred over uploading and trying to post images here.

I recently pulled the Hydra Nemesis 2.6, WBO2 sensor, and injectors from my Mazdaspeed MX-5. The injector wire harness adaptors are included. They plug into an NB wire harness (maybe NA?) and have been installed since 2010 when the FM2 Garrett upgrade kit was installed at some unknown mileage by the first owner. I am the third owner and the car now has about 27,500 miles on the odometer. The bottom spacers seem a little crispy, still flexible but harder than I'd expect. You could reuse the ones on the OEM injectors or buy replacements. The upper O-rings look good but it's always recommended to use new versus decade old seals.

The Hydra will most likely go to the local scrap electronics place. I have the software CD and it was running ok, just had a track racing tune that ran too rich for me. I made some progress but tuning wasn't easy because the fuel auto-tuning feature is locked. I tried to get it upgraded to 2.7 but NemesisEMS (new company) misled me and no longer seems to care about previous customers. I was ghosted after they took my money and had to file a dispute. If you are a glutton for punishment that can build a jumper harness to attach to your car, can tune from datalogs, is willing to deal with clunky old software, and is ok starting with the FM base map (VERY good base maps) or modifying the MSM tune that's loaded, pay for shipping and it's yours. The included Hydra harness will only plug into a 2004/2005 MSM.

Mileage or age of the injectors?

Read much? "have been installed since 2010 when the FM2 Garrett upgrade kit was installed at some unknown mileage by the first owner. I am the third owner and the car now has about 27,500 miles on the odometer."

Seeing that the car was very likely purchased in 2003 (Mazda releases model years very early) and that the kit wasn't installed for 6-7 years, the mileage should be less than 10-15k miles.

PM sent.

I'm putting this sale on hold, might list it locally Spring 2022 or throw it on eBay. I don't have time with the holiday rush upon us (USPS, understaffed, VERY overworked).