Harley Fuel Injection Tuning Systems
Harley-Davidson Fuel Injection Tuning Systems at JJ Motorsports
Optimize your Harley's EFI performance with premium tuning systems from JJ Motorsports, featuring advanced ECU controllers and auto-tune modules for precise fuel mapping, throttle-by-wire integration, and dyno-level gains on Twin Cam, Milwaukee-Eight Softail, and Touring models. These plug-and-play kits deliver smoother power delivery, better throttle response, and self-learning calibration without dyno visits.
Shop Daytona Twin Tec and ThunderMax EFI tuning systems for race-proven reliability. Explore related categories such as Harley air and fuel for air cleaners and jets, or Harley for exhaust and cams to complete your EFI upgrade and unleash V-Twin potential.
Top Harley-Davidson Fuel Injection Tuning Systems
- Daytona Twin Tec LLC Fuel Injector Generation 6 Controller Twin Cam 17700 – Gen 6 EFI controller for Twin Cam engines; USB tuning with closed-loop O2 feedback for custom mapping.
- ThunderMax ECM with Auto-Tune 14-16 FLT 309-562 – Plug-and-play ECM for 2014-2016 Touring; self-tuning with touchscreen interface for throttle-by-wire models.
- ThunderMax ECU with Auto-Tune 18 Softail 309-589 – Auto-tuning ECU for 2018 Softail; seamless integration with Milwaukee-Eight for instant gains.
- ThunderMax ECM with Auto-Tune Non Throttle by Wire 309-460 – ECM for non-TBW Harleys; automatic fuel tuning for cleaner running and more torque.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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DYNOJET Auto Tune Kit - Harley-Davidson AT-110B
DYNOJET
$688.88DYNOJET Auto Tune Kit Harley-Davidson AT-110BMakes it possible to adjust cruise for best fuel economy as well as larger throttle openings for peak power, User can specify what air/fuel ratio to make each rpm and throttle position percentage combination,...10201533- SKU:
- 10201533
- Availability:
- Ships Same Business Day
- Weight:
- 1.55 LBS
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- EACH
- OXYGEN SENSOR PLUG SIZE:
- 18,00 MM (0,71')
- OXYGEN SENSOR PLUG SIZE METRIC:
- 18.00 MM
- PRODUCT NAME:
- TUNING MODULE
- FEATURE:
- INCLUDES OXYGEN SENSOR
- MODEL:
- POWER VISION
- PROGRAMMING:
- PRE-PROGRAMMED
- RIDING STYLE:
- STREET
- FEATURE:
- INCLUDES WELD-IN 18 MM BUNGS
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PROGRAMMING:
- PROGRAMMABLE
$688.88 -
DYNOJET Power Vision Shop Kit Tuner PV-TK3R
DYNOJET
$888.88DYNOJET Power Vision Shop Kit Tuner PV-TK3RTune multiple bikes using just one AutoTune Pro Module, Designed for shops without a Dynojet dyno or Gen4 exhaust pump, Include AutoTune Pro Module with plug-in power supply, and all necessary cables in order to...10202796- SKU:
- 10202796
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- PRODUCT NAME:
- TUNER KIT
- BASE COLOR:
- BLACK
$888.88 -
DYNOJET Power Vision Target Tune with O2 Sensor - Harley-Davidson TT-5
DYNOJET
$688.88DYNOJET Power Vision Target Tune with O2 Sensor Harley-Davidson TT-5Includes OEM style connectors to plug into factory O² harness, either 2 or 4 pin versions, Allows the factory ECM to interpret and use wideband O² sensor signals, Retains OEM closed loop...10202491- SKU:
- 10202491
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- TUNING MODULE
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- BASE COLOR:
- GRAY
- BASE COLOR:
- RED
- BASE COLOR:
- WHITE
- COLOR/FINISH:
- GRAY
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- WHITE
- FEATURE:
- INCLUDES OXYGEN SENSOR
- MODEL:
- TARGET TUNE
- PROGRAMMING:
- PRE-PROGRAMMED
- RIDING STYLE:
- STREET
$688.88 -
DYNOJET Power Vision Target Tune with O2 Sensor - Harley-Davidson TT-4
DYNOJET
$688.88DYNOJET Power Vision Target Tune with O2 Sensor Harley-Davidson TT-4Includes OEM style connectors to plug into factory O² harness, either 2 or 4 pin versions, Allows the factory ECM to interpret and use wideband O² sensor signals, Retains OEM closed loop...10202489- SKU:
- 10202489
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- TUNING MODULE
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- BASE COLOR:
- WHITE
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- RIDING STYLE:
- STREET
- BASE COLOR:
- GRAY
- BASE COLOR:
- RED
- COLOR/FINISH:
- GRAY
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- WHITE
- FEATURE:
- INCLUDES OXYGEN SENSOR
- MODEL:
- TARGET TUNE
- PROGRAMMING:
- PRE-PROGRAMMED
$688.88 -
DRAG SPECIALTIES Engine Temperature Sensor MC-DRAG047
DRAG SPECIALTIES
$50.91OEM replacementDS289285- SKU:
- DS289285
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- SENSOR
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE TEMPERATURE
$50.91
