Hondata 2000cc High-Flow Fuel Injectors — FK2/FK8/FL5 Civic Type R, DE5 Integra Type S

Introducing our high flowing FK2,FK8, FL5 and DE5 2000cc injectors, custom designed and proudly manufactured in the US. Elevate your performance with these high-quality injectors, providing a remarkable 90% increase in fuel delivery compared to the stock FK2 / FK8 / FL5 / DE5 injectors. Stock starting with a smooth idle while preserving a stock like spray pattern. Take your Civic Type R and Integra-S fuel capabilities to the next level with this upgrade for unprecedented fuel delivery and efficiency.

More power demands more fuel—without sacrificing drivability. Hondata’s US-designed 2000cc injectors replicate the OEM multi-hole, counter-bored nozzle architecture for excellent atomization and a stock-like spray cone. The result is smooth startups, stable idle, and consistent fueling under load.

~90% higher flow vs. stock CTR/Integra-S injectors
Stock-like atomization & spray for clean idle and throttle response
E85 compatible (excellent headroom for flex-fuel builds)
Calibrated at 100 bar; tested to >240 bar
Hondata has validated >550 whp on E85 (indicative of >700 hp on race fuel, application-dependent)
Designed & manufactured in the USA
Sold as a matched set of 4

Firstly, check out the injector tech video. This video was filmed with the 1530 injectors, but the data presented also relates to the 2000cc injectors.

Overview

Compatible Engines:

FK8 – Civic Type R (2017–2021)
FL5 – Civic Type R (2023+)
DE5 – Acura Integra Type S

Performance vs. Stock:

Delivers ~90% more fuel volume than stock injectors.
Designed for high-performance and flex-fuel (E85) setups.

Spray Pattern:

Similar to stock, maintaining smooth startup and idle behavior.

Flex Fuel Compatibility:

Fully compatible with flex fuel/E85.
Since E85 needs ~40% more fuel, these injectors must be paired with the Hondata Camshaft and Fuel System Plus to ensure proper fuel delivery (the stock pump alone isn’t enough).

Quality:

Designed, built, and tested in the USA.
2 years of testing conducted on Hondata’s in-house vehicle fleet.

More Information

Increasing injector flow while maintaining atomisation requires countersinking the holes. Hondata replicated the stock injector hole design. Simply drilling a hole does not optimise fuel atomisation. (think firehose)

The injector fuel exit must be counter-bored stepped for optimal atomisation.

Hondata tested with a microfine grid under each injector to determine the fuel delivered to each segment.

Injector tips

Stock injectors have 7 counter-bored holes
Hondata 2000 injectors have 8 counter-bored holes
The competitition 2000cc injectors have 6 counter-bored holes and 1 non counterbored.

Note the competitor injector spray cone and bend angle is smaller than stock.

Injector	Cone angle 100 bar	Bend angle 100 bar
Stock FK8	52.1	20
Hondata 2000cc	51.4	11.2
Competition	35.7	8

Stock injector atomisation 100 bar

Hondata 1530cc injector atomisation 100 bar

Competition injector atomisation 100 bar

Note the bulk of the spray is in the centre.

Fuel pressure

Max operating pressure	250 bar
Max sensor range	260 bar

Meaning, if you exceed 260 bar fuel pressure you wont know how much you over-pressureize. We've seen no powergains over 220 bar. Higher pressure improves atomisation but reduces fuel volume.

Injector lockup

When the fuel pressure is too high, the injector can lock up and stop delivering fuel. Fuel rails and pumps are very noisy as far as pressure waves are concerned. You might request 200 bar, but injector closing and pump operation can spike this to many bar higher. This pressure wave noise is too brief to be measured by the stock Honda fuel rail pressure sensor. Hondata injectors are designed to function between 200 and 240 bar (and a lot higher values). Higher pressures may improve atomisation but decrease fuel pump volumetric efficiency - as in your system delivers less fuel. (Read this Hondata test on in tank pumps) We have seen competing injectors lock up at 230 bar, which is bad for your engine.