DAYTONA TWIN TEC LLC
Auto-tune Electronic Fuel Injection Control Module Kit - M8 Softail
Part # 1020-4241
$1,307.95
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CARB Compliance: B — Not legal for sale in California
Confirmed fit for 32 motorcycle configurations across Harley-Davidson, model years 2021–2024.
| Years | Make & Model |
|---|---|
| 2022 | Harley-Davidson Softail Street Bob FXBB |
| 2022 | Harley-Davidson FXRST Low Rider El Diablo 117 |
| 2022-2024 | Harley-Davidson FXLRST Low Rider ST 117 |
| 2021-2024 | Harley-Davidson FLHCS Heritage Classic 114 |
| 2021, 2023 | Harley-Davidson FXFBS Fat Bob 114 |
| 2022-2024 | Harley-Davidson FXLRS Low Rider S 117 |
| 2021-2024 | Harley-Davidson FXST Softail Standard 107 |
| 2021 | Harley-Davidson FLSL Softail Slim 107 |
| 2021 | Harley-Davidson FXLRS Low Rider S 114 |
| 2021-2024 | Harley-Davidson FXBBS Street Bob 114 |
| 2021-2024 | Harley-Davidson FLFBS Fat Boy 114 |
| 2021 | Harley-Davidson FLHC Heritage Classic 107 |
| 2021 | Harley-Davidson FLSB Sport Glide 107 |
| 2023-2024 | Harley-Davidson FXBR Breakout 117 |
- Quickly auto-tune fuel curves for front and rear cylinders on a dyno or on-road with new WEGO IIID dual channel wide-band oxygen sensor interface
- Includes wide-band 18 mm oxygen sensors, 18 mm sensor bungs and sensor cables, USB-C cable and USB-C to A adapter, PC Link Software and installation/Tuning Guide
- Robust alpha-N (throttle position and rpm-based) fuel control eliminates problems with long duration/high overlap camshafts
- Extended data logging and diagnostics
- Data flash memory stores full 60 minutes of operating data at 10 samples per second
- Programmable user input for functions such as two-stage rpm limiter, nitrous retard and shift kill
- Programmable user output for functions such as shift light, nitrous activation and electric shifter
- Powerful Windows software for custom programming and data analysis
- Billet aluminum housing with a black anodized finish
- Fully programmable plug-in replacement
- Easy plug-in-play installation
- Made in the USA
- Does not work on models with VVT (variable valve timing).
- Some aftermarket exhaust systems may require modifications or relocation of their O2 sensor port bungs to avoid clearance issues.
- ECM kits are race only and require a qualified technician to install.
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Overview
The DAYTONA TWIN TEC LLC 1020-4241: Auto-tune Electronic Fuel Injection Control Module Kit - M8 Softail. Confirmed fit for 32 motorcycle configurations across Harley-Davidson, model years 2021–2024. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
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Fits these motorcycles
- Harley-Davidson Softail Street Bob FXBB
- Harley-Davidson FXRST Low Rider El Diablo 117
- Harley-Davidson FXLRST Low Rider ST 117
- Harley-Davidson FLHCS Heritage Classic 114
- Harley-Davidson FXFBS Fat Bob 114
- Harley-Davidson FXLRS Low Rider S 117
- Harley-Davidson FXST Softail Standard 107
- Harley-Davidson FLSL Softail Slim 107
- Harley-Davidson FXLRS Low Rider S 114
- Harley-Davidson FXBBS Street Bob 114
- Harley-Davidson FLFBS Fat Boy 114
- Harley-Davidson FLHC Heritage Classic 107
- Harley-Davidson FLSB Sport Glide 107
- Harley-Davidson FXBR Breakout 117