We build injectors for Flyin' Miata. When the biggest name in Miata performance needs injectors, they come to us. The kits on this page come off the same bench in Tennessee.
The FF640 is FlowForce's flagship plug and play injector kit for NA/NB Miatas. Flowing at 640cc in NA Miatas and 739cc in NB Miatas, these deliver clean idle quality
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Very nice package with all the necessary to mount the injectors. At the moment everything is ok, I use the video attached to see how to mount them.
Honestly I didn't understand that the shop is in the USA by the way, that was not a problem.
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Ignazio · June 15, 2026
640CC Injectors and DW200 Fuel pump. 2004 MazdaSpeed Miata. Put in a Beer Money Motorsports ECU and a tune. Car is much more fun, picked up 40HP just with injectors and tune.
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Jacob · June 10, 2026
Ordered the injector kit for my 1.8 turbo-charged Miata setup and they work beautifully! Smooth acceleration and graphing through the whole fuel curve. Had them in about a year now and they still work beautifully.
I had to remove the filter screens to clean out dirt that came through my fuel lines from the vehicle sitting so long prior. But these filter screens made it super easy to clean out and get it back up and running. Definitely recommend