Daytona Twin Tech Twin Tuner EX EFI Controller For Harley FXST/FLST (2001–2008)
The Twin Tuner EX is a 50-state street-legal tuning solution that integrates with OEM Delphi EFI systems to optimize performance when running aftermarket parts on Harley Davidson FXST and FLST models from 2001 to 2008.
- Fits Harley Davidson FXST, FLST, FLT, FXD models from 2001–2008.
- Adjusts fuel trim above 60% throttle for precise engine tuning and improved performance.
- Push-button switches enable real-time fuel-trim adjustments.
- Optional USB interface enables access to Advanced mode for deeper tuning.
- Independent calibration of front and rear cylinders for a tailored map to your setup.
- Compatible with the Twin Scan II tuning tool for seamless integration with existing diagnostic equipment.
- Made in the USA; crafted for reliability and durability.
- Not available for sale in California (regulatory restrictions; ARB E.O. No. D-641).
- Included accessories: Round Mirror with Long Stem Chrome, Twin Tuner II EFI Controller, TCFI Gen 4 EFI Controller.
- Part number: 16103.
Twin tuner ex allows easy adjustment to OEM Delphi EFI systems to improve performance and match the requirements of performance parts.
The Daytona Twin Tech Twin Tuner EX EFI Controller is a 50-state street-legal tuner designed for Harley Davidson FXST and FLST models from 2001 to 2008. This advanced electronic fuel injection controller allows precise adjustment of fuel trim above 60% throttle, giving riders the ability to optimize engine performance and efficiency. Featuring intuitive push-button switches, it simplifies making real-time fuel adjustments, while an optional USB interface enables access to more detailed tuning in advanced mode. The Twin Tuner EX supports independent calibration of front and rear cylinders, ensuring a tailored tune for your motorcycle's specific setup. Compatible with the Twin Scan II tuning tool, this controller provides seamless integration with existing diagnostic and tuning equipment. Please note, this product is not available for sale in California due to regulatory restrictions and complies with ARB E.O. No. D-641 standards. Crafted in the USA, it offers reliable performance and durability for serious riders seeking custom tuning options for their Harley Davidson motorcycles. The package includes accessory items such as the Round Mirror with Long Stem Chrome, Twin Tuner II EFI Controller, and TCFI Gen 4 EFI Controller, providing everything needed to enhance your bike’s EFI system and optimize ride quality.
Features:
- Street-legal tuner compliant with all 50 states
- Adjusts fuel trim above 60% throttle for optimal performance
- Push-button switches for easy fuel trim adjustments
- Advanced mode support requiring USB interface cable
- Independent calibration of front and rear cylinders
- Compatible with Twin Scan II tuning tool
Fitment:
Harley Davidson FLST 2001
Harley Davidson FLST 2002
Harley Davidson FLST 2003
Harley Davidson FLST 2004
Harley Davidson FLST 2005
Harley Davidson FLST 2006
Harley Davidson FLST 2007
Harley Davidson FLST 2008
Harley Davidson FLT 2001
Harley Davidson FLT 2002
Harley Davidson FLT 2003
Harley Davidson FLT 2004
Harley Davidson FLT 2005
Harley Davidson FLT 2006
Harley Davidson FLT 2007
Harley Davidson FLT 2008
Harley Davidson FXD 2001
Harley Davidson FXD 2002
Harley Davidson FXD 2003
Harley Davidson FXD 2004
Harley Davidson FXD 2005
Harley Davidson FXD 2006
Harley Davidson FXD 2007
Harley Davidson FXD 2008
Harley Davidson FXST 2001
Harley Davidson FXST 2002
Harley Davidson FXST 2003
Harley Davidson FXST 2004
Harley Davidson FXST 2005
Harley Davidson FXST 2006
Harley Davidson FXST 2007
Harley Davidson FXST 2008
