Daytona Twin Tech 17821 M8FI Gen 9 EFI Controller

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 17821 M8FI Gen 9 EFI Controller provides automatic fuel-curve tuning for front and rear cylinders on a dyno or during on-road operation. Its alpha-N fuel control is designed to address tuning challenges associated with long-duration, high-overlap camshafts.

Windows software supports custom programming and data analysis, while extended data logging and diagnostic functions provide additional tuning insight. The controller's data flash memory stores up to 60 minutes of operating data at 10 samples per second.

User input functions include a two-stage RPM limiter, nitrous retard, and shift kill. User output functions include shift-light control, nitrous activation, and electric-shifter control. The Daytona Twin Tech 17821 is not compatible with models equipped with variable valve timing. Some aftermarket exhaust systems may require modification or relocation of their O2 sensor-port bungs to address clearance issues.

Features:

• Fuel Curve Tuning: Automatically tunes fuel curves for front and rear cylinders on a dyno or on the road.
• Alpha-N Fuel Control: Helps manage tuning requirements associated with long-duration, high-overlap camshafts.
• Windows Software: Provides custom programming and data analysis.
• Data Logging: Stores up to 60 minutes of operating data at 10 samples per second.
• Diagnostics: Includes extended diagnostic capabilities.
• User Inputs: Provides a two-stage RPM limiter, nitrous retard, and shift kill functions.
• User Outputs: Supports shift-light control, nitrous activation, and electric-shifter control.
• Compatibility Note: Does not work on models with variable valve timing.
• Exhaust Clearance Note: Some aftermarket exhaust systems may require modification or relocation of their O2 sensor-port bungs.
• Accessory Items: 32-3045 - USB Interface Cable, 34-1188 - EFI Intake Manifold Flange Set Chrome, 32-7834 - M8FI Gen 9 EFI Controller, 32-7835 - M8FI Gen 9 EFI Controller

Fitment:
Harley Davidson FLFBS 2021
Harley Davidson FLFBS 2022
Harley Davidson FLFBS 2023
Harley Davidson FLFBS 2024
Harley Davidson FLHC 2021
Harley Davidson FLHCS 2021
Harley Davidson FLHCS 2022
Harley Davidson FLHCS 2023
Harley Davidson FLHCS 2024
Harley Davidson FLSB 2021
Harley Davidson FLSL 2021
Harley Davidson FXBB 2022
Harley Davidson FXBBS 2021
Harley Davidson FXBBS 2022
Harley Davidson FXBBS 2023
Harley Davidson FXBBS 2024
Harley Davidson FXBR 2023
Harley Davidson FXBR 2024
Harley Davidson FXFBS 2021
Harley Davidson FXFBS 2023
Harley Davidson FXLRS 2021
Harley Davidson FXLRS 2022
Harley Davidson FXLRS 2023
Harley Davidson FXLRS 2024
Harley Davidson FXLRST 2022
Harley Davidson FXLRST 2023
Harley Davidson FXLRST 2024
Harley Davidson FXRST 2022
Harley Davidson FXST 2021
Harley Davidson FXST 2022
Harley Davidson FXST 2023
Harley Davidson FXST 2024