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!
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DYNOJET Power Commander 6 Fuel Injection Module - Ignition Adjustment - Victory PC6-19001
DYNOJET
$588.88The DYNOJET Power Commander 6 puts precise fuel and ignition control directly in your hands, eliminating factory limitations that hold back performance. Whether you're chasing dyno gains, optimizing...10203600- SKU:
- 10203600
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$588.88 -
DYNOJET Power Commander 6 Fuel Injection Module - Ignition Adjustment - Victory PC6-19002
DYNOJET
$588.88The DYNOJET Power Commander 6 puts real tuning control in your hands, letting you dial in fuel and ignition timing precisely to your engine's demands and modifications. Whether you're running forced...10203601- SKU:
- 10203601
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
$588.88 -
DYNOJET Power Commander 6 Fuel Injection Module - Ignition Adjustment - Victory PC6-19006
DYNOJET
$588.88The Power Commander 6 gives you cylinder-by-cylinder control over fuel and ignition timing across every gear, letting you extract maximum power from your Victory while maintaining reliability under...10203602- SKU:
- 10203602
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$588.88 -
DYNOJET Power Commander 6 Fuel Injection Module - Victory PC6-19050
DYNOJET
$533.32If you're running a Victory with aftermarket performance parts, you're leaving power on the table without proper fuel mapping. The Power Commander 6 gives you cylinder-by-cylinder, gear-by-gear...10203606- SKU:
- 10203606
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
$533.32 -
DYNOJET Power Commander 6 Fuel Injection Module - Crank Sensor - Indian PC6-29001
DYNOJET
$533.32The DYNOJET Power Commander 6 transforms your Indian's fuel delivery and ignition timing from a fixed, one-size-fits-all map into a precisely tuned system tailored to your specific engine...10203607- SKU:
- 10203607
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$533.32 -
DYNOJET Power Commander 6 Fuel Injection Module - Ignition Adjustment - Indian PC6-29002
DYNOJET
$588.88If you're serious about maximizing your Indian's performance, fuel and ignition mapping aren't optional—they're essential. The Power Commander 6 gives you cylinder-by-cylinder, gear-by-gear control...10203608- SKU:
- 10203608
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$588.88 -
DYNOJET Power Commander 6 Fuel Injection Module - Ignition Adjustment - Indian PC6-29003
DYNOJET
$588.88If you're serious about extracting every horsepower from your Indian motorcycle, fuel mapping and ignition timing are non-negotiable—and the Power Commander 6 gives you cylinder-by-cylinder,...10203609- SKU:
- 10203609
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$588.88 -
DYNOJET Power Commander 6 Fuel Injection Module - Crank Sensor - Indian PC6-29004
DYNOJET
$533.32If you're running Indian fuel injection, precise fuel mapping across individual cylinders and gears is the difference between a dyno queen and a genuinely optimized ride. The Power Commander 6 gives...10203610- SKU:
- 10203610
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
$533.32 -
DYNOJET Power Commander 6 Fuel Injection Module - Crank Sensor - Indian PC6-29005
DYNOJET
$533.32Precision fuel mapping transforms how your Indian-platform bike performs across the entire rev range. The Power Commander 6 gives you cylinder-by-cylinder and gear-specific tuning control that...10203611- SKU:
- 10203611
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$533.32 -
DYNOJET Power Vision 4 Fuel Injection Controller PV4-15-01
DYNOJET
$533.32The DYNOJET Power Vision 4 transforms your fuel-injected motorcycle from a one-tune machine into a fully customizable platform. Swap between pre-loaded performance tunes instantly, diagnose issues...10203989- SKU:
- 10203989
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$533.32 -
DYNOJET Auto Tune Kit - Harley-Davidson AT-132
DYNOJET
$722.21The DYNOJET Auto Tune Kit gives you real-time control over your Harley-Davidson's air/fuel ratio across every RPM and throttle position—eliminating the guesswork of tuning and unlocking measurable...10204036- SKU:
- 10204036
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 LBS
$722.21 -
DYNOJET Target Tune Module Kit with O2 Sensor - Touring TT-8
DYNOJET
$722.21Precision fuel tuning on a stock ECM requires a bridge between modern wideband sensor technology and your factory engine management system—the DYNOJET Target Tune Module does exactly that. This...10204037- SKU:
- 10204037
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
$722.21 -
DYNOJET Auto Tune Kit - Harley-Davidson AT-130
DYNOJET
$722.21Fine-tuning your Harley's air/fuel ratio across the entire RPM range unlocks measurable gains in throttle response, fuel economy, and peak power output. The DYNOJET Auto Tune Kit AT-130 gives you...10204044- SKU:
- 10204044
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
$722.21 -
DYNOJET Auto Tune Kit - Harley-Davidson AT-131
DYNOJET
$722.21Precise fuel mapping is the difference between a bike that idles smooth on the highway and one that leaves power on the table. The DYNOJET Auto Tune Kit gives you real-time control over air/fuel...10204045- SKU:
- 10204045
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
$722.21 -
DYNOJET Target Tune Module Kit without O2 Sensor - Touring TT-8X
DYNOJET
$377.77The DYNOJET Target Tune Module Kit gives you real-time fuel mapping control without sacrificing your motorcycle's factory diagnostics or closed-loop operation. This is the solution for riders who...10204046- SKU:
- 10204046
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
$377.77 -
DYNOJET Power Vision 3 Shop Kit - Harley-Davidson PV3-TK1
DYNOJET
$1,499.99If you're serious about extracting maximum performance from your Harley-Davidson, you need real-time tuning data and the ability to dial in custom parameters specific to your modifications. The...10204055- SKU:
- 10204055
- Availability:
- Ships Same Business Day
- Weight:
- 4.59 LBS
$1,499.99 -
VANCE & HINES Fuelpak 4 Tuning Module - Pan America 66049
VANCE & HINES
$399.95Real-time engine tuning puts performance optimization in your hands—no dealer visits, no guesswork. The FuelPak 4 delivers precise fuel mapping and ignition adjustment through an intuitive mobile...10204200- SKU:
- 10204200
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
$399.95 -
DYNOJET InVision Monitor Electronic Control Unit - Indian INV-2901
DYNOJET
$277.77Custom tuning requires real-time visibility into your engine's performance metrics—and the InVision Monitor delivers exactly that. This electronic control unit lets you monitor critical engine data...10204211- SKU:
- 10204211
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
$277.77 -
DAYTONA TWIN TEC LLC Fuel Injection Electronic Control Module Kit - '17-'20 Touring 17808
DAYTONA TWIN TEC LLC
$1,307.95If you're running a '17-'20 Touring with extended-duration cams or aggressive overlap, your factory fuel mapping likely can't keep up—leaving power on the table and drivability issues on the dyno...10204214- SKU:
- 10204214
- Availability:
- Ships Same Business Day
- Weight:
- 2.47 LBS
$1,307.95 -
DAYTONA TWIN TEC LLC Fuel Injection Electronic Control Module Kit with 2 BAR Manifold Absolute Sensor - '17-'20 Touring 17809
DAYTONA TWIN TEC LLC
$1,371.95If you're running a modern Harley with aggressive cam profiles or forced induction, your stock fuel mapping can't keep up—lean spots and tuning headaches are inevitable. The Daytona Twin Tec LLC...10204215- SKU:
- 10204215
- Availability:
- Ships Same Business Day
- Weight:
- 2.66 LBS
$1,371.95
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Fuel Injection Tuning Systems
- Compatibility: Ensure the tuner fits your Harley's model (e.g., Twin Cam, V-Rod 2002-2013, Touring FLHT 2014-2016, Softail 2016-2017) and engine type (e.g., fuel-injected, throttle-by-wire or non-TBW). Use the vehicle selector for year-specific matches to avoid wiring or calibration issues.
- Type of Use: For street touring or modified bikes, select auto-tune ECMs for self-calibrating efficiency; high-performance or dyno-tuned setups benefit from wideband controllers with data logging for precise air/fuel adjustments in demanding conditions.
- Components and Upgrades: Choose systems with ECU controllers, auto-tune modules, wide-band O2 sensors (e.g., Bosch LSU 4.2), harnesses, and USB interfaces. Add upgrades like target tune kits for adaptive control or shop tuners for multi-bike use.
- Brand and Quality: Opt for ThunderMax for ECMs with touchscreen auto-tune, Dynojet for Power Vision wideband systems with datalogging, or Daytona Twin Tec for Gen 6 controllers with O2 feedback. Prioritize dyno-proven, plug-and-play designs for reliability and performance gains.
- Installation and Cost: Most are plug-in with OEM connectors for easy DIY setup; include software and manuals. Prices range from $595 for basic tuners to $1,285 for advanced controllers—factor in free software updates and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models do these fuel injection tuning systems support? Systems support models like Twin Cam, V-Rod (2002-2013), Touring FLHT (2008-2016), Softail (2016-2017), and more—use the year/make/model filter for exact compatibility with throttle-by-wire or non-TBW setups.
- How do auto-tune systems improve performance? They self-calibrate air/fuel ratios using wide-band O2 sensors for smoother power, better throttle response, and no dyno required, ideal for modified engines.
- What is typically included in a tuning kit? Kits often include ECU/modules, wide-band sensors, harnesses, USB cables, software, weld nuts, and manuals for complete installation and tuning.
- Are these systems plug-and-play? Yes, with OEM-style connectors and closed-loop feedback, they install easily without ECU removal, supporting custom maps via PC.
- What if a system doesn't fit my Harley? Verify engine type, year, and throttle system before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related air and fuel parts? Yes—explore air cleaners, fuel pumps, or carbs in the Harley air and fuel category to complement your tuning system for optimal efficiency.
