Hondata 2000cc Fuel Injector Upgrade for FK8/FL5/DE5

Hondata 2000cc Fuel Injector Upgrade (HON-FS-CTR-INJ-2000) - FK8/FL5 Civic Type R & DE5 Integra Type S

When you tune an FK8, FL5, or DE5 past a certain point, the factory injectors run out of fuel, they simply can't flow enough to feed the power you're making, and that's a hard ceiling on your build. These Hondata 2000cc injectors flow 90% more than stock, enough to support well beyond 550HP on E85, while keeping a stock-like spray pattern so the car still idles smoothly and drives normally. Designed and manufactured in the USA, sold as a matched set of four.

Why Bigger Injectors, And When You Need Them

Worth understanding, because injectors are a specific ceiling on a build.

Your injectors can only deliver so much fuel per cycle. As you add power, whether through boost, E85, or both, the engine needs more fuel, and at some point the factory injectors hit 100% duty cycle, they're open as long as they physically can be and still can't supply enough. Past that point you can't safely make more power; you're out of fuel, and running lean is how engines die.

These injectors flow 90% more than stock (a genuine 2080cc actual flow rate), which raises that ceiling dramatically. They give a tuned engine the fuel headroom to make real power, and they're essential for E85, which needs roughly 30% more fuel volume than gasoline for the same power, exactly the flow the factory injectors don't have.

The Power They Support

Hondata has tested these to concrete numbers.

These injectors have been tested to over 550HP on E85, and that flow capacity indicates a ceiling over 700HP on race fuel. That's well beyond what most builds will make, which is the point, you want injectors with headroom above your target, not injectors you're maxing out.

They're calibrated at 100 BAR (these are direct-injection injectors, running the high pressure a DI system uses) and tested to over 240 BAR, so they've got margin well past operating pressure. For an FK8, FL5, or DE5 being built for serious power, these remove fueling as the limitation.

Big Flow Without Ruining Drivability

This is the part that separates good injectors from cheap big ones.

The usual tradeoff with larger injectors is drivability, big injectors often idle roughly and run poorly at low load, because they're delivering fuel in bigger increments than the engine wants when it's just idling. That makes a car unpleasant to live with day to day.

Hondata designed these to keep a stock-like spray pattern and atomization, so the fuel is delivered finely even at low flow. The result is a smooth idle and normal, clean running at part throttle despite the huge flow capacity up top. You get the headroom for big power without the car becoming a temperamental race-only machine, it still behaves on the street.

E85 Ready

Built for ethanol, which is where a lot of this platform's power comes from.

These are fully E85 compatible, and given E85's higher fuel volume requirement, they're the enabler for an ethanol setup on these cars. The 550HP figure is an E85 number specifically, so if you're running or planning flex fuel or straight E85, these injectors are sized for it.

Matched Set, USA Made

The details that matter on a fuel injector.

They're sold as a matched set of four, which is essential, injectors need to flow consistently with each other so every cylinder gets the same fuel, and a matched set guarantees that balance. Mismatched injectors mean cylinders running different air-fuel ratios, which is both a power and a reliability problem.

They're designed and manufactured in the USA to Hondata's specification, Hondata being one of the most trusted names in Honda engine management, which is the kind of pedigree you want on a part your engine's survival depends on.

You'll Need To Tune For Them

Worth stating, since injectors this size require calibration.

Injectors flowing 90% more than stock require the ECU to be tuned to account for their flow, this isn't a plug-and-play swap. Your tuner needs the injector data to calibrate fuel delivery correctly, and Hondata supports these injectors directly in FlashPro, their tuning platform for these cars, so the injector data is built in for a clean calibration. Plan for a tune, and a FlashPro if you don't already have one, as part of fitting them.

Fitment

Honda Civic Type R FK2, FK8, and FL5
Acura Integra Type S (DE5)

Direct-injection injectors, 2000cc (2080cc actual flow). Part number HON-FS-CTR-INJ-2000. Sold as a matched set of four.

US sales only. As a US Hondata dealer, we can only sell Hondata products within the United States, so while the FK2 is listed for fitment, these cannot be shipped internationally.

Who Should Grab These

This is for the FK8, FL5, or DE5 owner building past what the factory injectors can feed, especially anyone running E85 or chasing serious power. Ninety percent more flow, tested beyond 550HP on E85 and indicating over 700HP on race fuel, with a stock-like spray pattern that keeps the car idling and driving normally. USA-made, matched set, from Hondata. Remove fueling as your limit, get them tuned with FlashPro, and make the power.

Fits: Honda Civic Type R FK2, FK8, FL5, and Acura Integra Type S (DE5). Part number: HON-FS-CTR-INJ-2000. Flow: 2000cc (2080cc actual), 90% more than stock. Capacity: tested 550+ HP on E85, indicates 700+ HP on race fuel. Calibration: 100 BAR, tested to 240+ BAR. Fuel: E85 compatible. Type: direct-injection, matched set of 4, USA made. Tuning: requires a tune, supported in Hondata FlashPro. Note: US sales only.