Flow Force 640CC Injectors
FlowForce 640 CC Injectors for a Miata. These fit any 90-05 Miata.
TLDR - Injectors are for sale, you'll need to figure out wiring adapters and replace seals if desired. I'll include the fuel rail spacers I had made via SendCutSend. $
Great injectors and should be capable of ~300 WHP on pump gas. I got a deal on some 1050's so I decided to upgrade. These were great at idle and never gave me issues at full throttle. I reused the fuel rail spacers when I swapped injectors, but I did draw some up that I will include. I have not tested them, but they should be the correct size. I also reused the wiring harness adapters, so you will need to buy some or adapt your harness to the EV14 style connectors. Seals/O-rings are still on the injectors but I would recommend getting new ones at this point. FlowForce carries the wiring adapters, fuel rail spacers and seals on their website here ( https://goflowforce.com/collections/...6dboZAKjXXDklf ), or you can source them elsewhere.
Last edited by SimBa; Aug 27, 2025 at 01:16 PM.
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