Daytona Twin Tec M8FI Gen 9 EFI Controller for Harley-Davidson — Auto-Tune Fuel Injection

The Daytona Twin Tec M8FI Gen 9 Auto Tune EFI Controller is a plug‑in replacement that auto‑tunes fuel curves for Harley-Davidson motorcycles (2021–2024), delivering front and rear cylinder fuel adjustments on both dyno and street riding.

• Fully programmable kit with a billet aluminum housing and black anodized finish.
• Fitment includes Harley Davidson FLHR, FLHT, FLHX, and FLTR models from 2021 through 2024.
• Auto‑tune capability uses an alpha‑N fuel control system to address long duration and high overlap camshafts, providing reliable fuel delivery.
• Memory supports 60 minutes of operating data at 10 samples per second for detailed diagnostics and tuning.
• Windows software enables custom programming, data analysis, and extended data logging.
• User input: two‑stage rpm limiter, nitrous retard, and shift kill for enhanced control.
• User output: shift light, nitrous activation, and electric shifter for convenience.
• Includes a complete kit with USB interface cable, chrome intake manifold flange set, and M8FI Gen 9 controllers; built in the USA.
• Not compatible with models that use variable valve timing (VVT); some aftermarket exhaust systems may require relocation or modification of O2 sensor bungs to avoid clearance issues.
• Part number 17818.

Whether seeking improved fuel efficiency, higher horsepower, or greater tuning flexibility, the M8FI Gen 9 offers a professional-grade solution tailored for Harley‑Davidson enthusiasts and tuners.

Daytona Twin Tec M8FI Gen 9 Auto Tune fuel injection controller is fully programmable plug in replacement featuring a billet aluminum housing with a black anodized finish.

The Daytona Twin Tech M8FI Gen 9 EFI Controller offers advanced fuel management designed specifically for Harley Davidson motorcycles, including models from 2021 to 2024. This comprehensive kit enables quick auto-tuning of fuel curves for both front and rear cylinders, whether on a dynamometer or on the road, streamlining the tuning process for optimal performance. Its robust alpha-N fuel control system effectively addresses challenges associated with long duration and high overlap camshafts, providing reliable, consistent fuel delivery. The included Windows software allows for custom programming, detailed data analysis, and extended data logging, with memory capable of storing 60 minutes of operating data at 10 samples per second, facilitating precise diagnostics and tuning adjustments. User input functions such as two-stage rpm limiter, nitrous retard, and shift kill give riders greater control over engine performance, while user output functions like shift light, nitrous activation, and electric shifter enhance riding convenience and functionality.
Designed with durability and ease of use in mind, this EFI controller is built in the USA and comes as a complete kit, including key accessory items like a USB interface cable, chrome intake manifold flange set, and the M8FI Gen 9 controllers. Please note that this EFI system does not support models with variable valve timing (VVT), and some aftermarket exhaust systems may require modifications or relocation of O2 sensor bungs to avoid clearance issues. Whether you're seeking improved fuel efficiency, increased horsepower, or enhanced tuning flexibility, the Daytona Twin Tech M8FI Gen 9 EFI Controller provides a professional-grade solution for Harley Davidson enthusiasts and tuners alike.

Fitment:
Harley Davidson FLHR 2021
Harley Davidson FLHR 2022
Harley Davidson FLHR 2023
Harley Davidson FLHR 2024
Harley Davidson FLHT 2021
Harley Davidson FLHT 2022
Harley Davidson FLHT 2023
Harley Davidson FLHT 2024
Harley Davidson FLHX 2021
Harley Davidson FLHX 2022
Harley Davidson FLHX 2023
Harley Davidson FLHX 2024
Harley Davidson FLTR 2021
Harley Davidson FLTR 2022
Harley Davidson FLTR 2023
Harley Davidson FLTR 2024