FlowForce NA/NB 380cc Injector Kit

We understand that not everyone is going for a rod-busting turbo build. We've had requests over the years for an entry-level injector kit for folks who want to run E85 on their naturally aspirated cars, or for budget-oriented pump gas boosted builds. It took a long time to get this one right because it was essential that we didn't sacrifice quality in the search for a lower-priced alternative to the FF640 kit. In the end, we followed the same formula that makes the 640 kit so successful, EV14 injectors, unmodified OEM tips, and plug and play installation, while finding ways to bring down the cost of the finished product.

We start with sixth-generation Mustang 5.0L injectors. We source sub-100 mile dealer take-offs, or low mileage used injectors that we clean and refurbish in-house. We developed custom tooling to re-shape the tops for fitment in a Miata fuel rail without the need for an expensive adapter. Finally, we flow test and match injectors into sets within +/- 1% at both idle and wide open conditions.

The end result is an E85-capable, smooth-idling, precisely-controllable injector at a very affordable price. On pump gas, about 200whp is achievable with this kit.

Note: These injectors use reshaped OEM tops for direct fitment in the Miata fuel rail. No top-hat adapters or extenders are required or included.

The kit is plug and play for 1990-2005 Mazda Miatas and requires standalone engine management to function properly.

Installation and configuration guidelines:
goflowforce.com/pages/instructions