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
-
DAYTONA TWIN TEC LLC Fuel Injector Generation-6 Controller - Twin Cam 17700
DAYTONA TWIN TEC LLC
$1,285.95Precision fuel management separates consistent power delivery from erratic performance on the dyno and the track. The DAYTONA TWIN TEC LLC Fuel Injector Generation-6 Controller eliminates manifold pressure dependency with advanced Alpha-N fuel control,...10202383- SKU:
- 10202383
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- BASE COLOR:
- WHITE
- FEATURE:
- INCLUDES OXYGEN SENSOR
- OXYGEN SENSOR PLUG SIZE:
- 18,00 MM (0,71')
- PRODUCT NAME:
- FUEL INJECTION CONTROLLER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- WHITE
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PROGRAMMING:
- AUTOTUNE
- PROGRAMMING:
- PRE-PROGRAMMED
- PROGRAMMING:
- PROGRAMMABLE
- BASE COLOR:
- BLACK
- OXYGEN SENSOR PLUG SIZE IMPERIAL:
- 0.71'
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- COLOR/FINISH:
- BLACK
- OXYGEN SENSOR PLUG SIZE METRIC:
- 18.00 MM
- UNITS:
- KIT
$1,285.95 -
THUNDERMAX ECM with Auto Tune - '11 FXST 309-361
THUNDERMAX
$1,088.95Stock ECMs limit your '11 FXST's potential—they can't adapt to aftermarket modifications or optimize for your specific riding conditions. The ThunderMax ECM with Auto-Tune replaces that factory limitation with a closed-loop tuning system that...10201848- SKU:
- 10201848
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- UNITS:
- KIT
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- TYPE:
- AIR/FUEL RATIO
- BASE COLOR:
- BLACK
- RIDING STYLE:
- STREET
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
$1,088.95 -
THUNDERMAX ECM with Auto Tune - '02-'13 V-Rod 309-466
THUNDERMAX
$1,088.95Factory ECM tuning limits your V-Rod's potential—the ThunderMax ECM with Auto-Tune unlocks real performance gains by continuously adapting your air/fuel ratio to actual riding conditions rather than fixed parameters. Skip the dyno shop and tune your bike...10201853- SKU:
- 10201853
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- TYPE:
- AIR/FUEL RATIO
- RIDING STYLE:
- STREET
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
$1,088.95Qty in Cart: 0Quantity:Price:$1,088.95Subtotal: -
THUNDERMAX ECM with Auto Tune - '14-'16 FLT 309-562
THUNDERMAX
$1,088.95Factory ECMs limit your bike's potential—they can't adapt to aftermarket modifications or optimize for your specific riding style. ThunderMax ECM with Auto-Tune replaces that constraint with a closed-loop tuning system that continuously adjusts your...10202118- SKU:
- 10202118
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- BASE COLOR:
- BLACK
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- PROGRAMMING:
- DOWNLOADABLE MAPS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- OXYGEN SENSOR BAND:
- WIDE-BAND
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- KIT
- RIDING STYLE:
- STREET
$1,088.95Qty in Cart: 0Quantity:Price:$1,088.95Subtotal: -
THUNDERMAX ECM with Auto Tune - Non-Throttle By Wire 309-460
THUNDERMAX
$1,088.95Factory ECM tuning is a compromise—it's built to satisfy EPA regulations and broad compatibility, not maximize your bike's performance. The ThunderMax ECM with Auto-Tune replaces that limitation with a closed-loop system that continuously adjusts your...10201851- SKU:
- 10201851
- Availability:
- Ships Same Business Day
- Weight:
- 2.61 LBS
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- RIDING STYLE:
- STREET
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- BASE COLOR:
- BLACK
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- KIT
$1,088.95Qty in Cart: 0Quantity:Price:$1,088.95Subtotal: -
THUNDERMAX Electronically Commutated Motor with Auto Tune - '16-'17 Softail 309-563
THUNDERMAX
$1,088.95Tuning your Softail's fuel delivery and ignition timing doesn't require expensive dyno sessions or guesswork—the ThunderMax ECM handles it automatically. Dual wide-band oxygen sensors constantly monitor your bike's combustion efficiency across all riding...10202850- SKU:
- 10202850
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
$1,088.95 -
THUNDERMAX Module with Auto Tune - '08-'13 FLHT 309-362
THUNDERMAX
$1,088.95Factory ECM tuning leaves performance on the table—ThunderMax Auto-Tune delivers adaptive, closed-loop fuel mapping that continuously adjusts to your engine's specific setup without requiring a dyno. Whether you're running bolt-on modifications or forced...10200836- SKU:
- 10200836
- Availability:
- Ships Same Business Day
- Weight:
- 2.81 LBS
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- PROGRAMMING:
- AUTOTUNE
- MODEL:
- THUNDERMAX
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PROGRAMMING:
- DOWNLOADABLE MAPS
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- RIDING STYLE:
- STREET
- OXYGEN SENSOR BAND:
- WIDE-BAND
$1,088.95 -
THUNDERMAX ECM with Auto Tune 309-382
THUNDERMAX
$1,088.95If you're running a tuned Harley or performance big twin, your factory ECM is holding you back. The ThunderMax ECM with Auto-Tune 309-382 replaces that limiting computer with a closed-loop tuning system that continuously adapts your air/fuel ratio across...10202360- SKU:
- 10202360
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MODEL:
- THUNDERMAX
- OXYGEN SENSOR BAND:
- WIDE-BAND
- UNITS:
- KIT
- BASE COLOR:
- BLACK
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- RIDING STYLE:
- STREET
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- TYPE:
- AIR/FUEL RATIO
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PROGRAMMING:
- AUTOTUNE
- PROGRAMMING:
- DOWNLOADABLE MAPS
$1,088.95Qty in Cart: 0Quantity:Price:$1,088.95Subtotal: -
THUNDERMAX ECM with Auto Tune 309-485
THUNDERMAX
$1,088.95Factory ECM tuning limits your bike's potential—the ThunderMax 309-485 unlocks it. This plug-and-play fuel management system uses real-time wide-band oxygen sensors and closed-loop control to continuously self-adjust your air/fuel ratio across all riding...10202361- SKU:
- 10202361
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- MODEL:
- THUNDERMAX
- BASE COLOR:
- BLACK
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- FEATURE:
- INCLUDES TWO OXYGEN SENSORS
- PROGRAMMING:
- AUTOTUNE
- PROGRAMMING:
- DOWNLOADABLE MAPS
- RIDING STYLE:
- STREET
- OXYGEN LOOP CONTROL:
- CLOSED LOOP
- OXYGEN SENSOR BAND:
- WIDE-BAND
- PRODUCT NAME:
- ELECTRONIC CONTROL MODULE
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- KIT
$1,088.95 -
DYNOJET Wideband Power Vision-3 Air Fuel Ratio Individual Dual WB-PV29-2
DYNOJET
$595.99Precision tuning demands accurate, real-time air-fuel ratio data—and the DYNOJET Wideband Power Vision-3 delivers exactly that without the wiring headaches of traditional wideband controllers. By integrating directly into your vehicle's diagnostic port,...10203200- SKU:
- 10203200
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- MODEL:
- POWER VISION CX
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- TUNING SYSTEM
- TYPE:
- WIDE-BAND
- UNITS:
- EACH
$595.99 -
On Sale
DYNOJET Wideband Power Vision-3 Air Fuel Ratio Individual Dual 500 WB-PV29-3
DYNOJET
MSRP: $796.71Now: $510.00Was: $796.71Real-time air-fuel ratio data is essential for tuning and diagnostics—guesswork has no place in serious engine management. The DYNOJET Wideband Power Vision-3 eliminates the complexity of traditional wideband controllers by integrating directly with your...10203201- SKU:
- 10203201
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- MODEL:
- POWER VISION CX
- RIDING STYLE:
- STREET
- TYPE:
- WIDE-BAND
- PRODUCT NAME:
- TUNING SYSTEM
- UNITS:
- EACH
- BASE COLOR:
- BLACK
MSRP: $796.71Now: $510.00Was: $796.71 -
DYNOJET Auto Tune Power Commander V - '10-'13 FLHT/X AT-100B
DYNOJET
$577.77The DYNOJET Auto Tune Power Commander V puts precise fuel mapping control directly in your hands, letting you optimize air/fuel ratios across every RPM and throttle position for your specific riding conditions. Whether you're chasing peak power on the...10201117- SKU:
- 10201117
- Availability:
- Ships Same Business Day
- Weight:
- 1.54 LBS
- BASE COLOR:
- BLACK
- MODEL:
- POWER COMMANDER V
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PROGRAMMING:
- AUTOTUNE
- UNITS:
- EACH
- COLOR/FINISH:
- RED
- FEATURE:
- INCLUDES OXYGEN SENSOR
- PRODUCT NAME:
- TUNING MODULE
- COLOR/FINISH:
- GRAY
- COLOR/FINISH:
- WHITE
- OXYGEN SENSOR PLUG SIZE IMPERIAL:
- 0.71'
- RIDING STYLE:
- STREET
- TYPE:
- AIR/FUEL RATIO
$577.77 -
DYNOJET Power Vision Visor - Black 61300054
DYNOJET
$33.32Maximize visibility during high-intensity dyno sessions and track days with the DYNOJET Power Vision Visor. This sun shade eliminates glare and screen washout, ensuring you can read real-time performance data without interruption. The quick-release...10202045- SKU:
- 10202045
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- MODEL:
- POWER VISION
- PRODUCT NAME:
- VISOR
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- BASE COLOR:
- BLACK
$33.32 -
DYNOJET Auto Tune Power Commander V - '12-'15 Softail/Dyna AT-101B
DYNOJET
$577.77Fine-tuning your air/fuel mixture across the entire throttle range unlocks hidden power while optimizing fuel economy—something the stock ECU simply cannot achieve. The DynoJet Auto Tune module gives you precise control at every RPM and throttle...10201559- SKU:
- 10201559
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- COLOR/FINISH:
- GRAY
- OXYGEN SENSOR PLUG SIZE IMPERIAL:
- 0.71'
- PRODUCT NAME:
- TUNING MODULE
- BASE COLOR:
- BLACK
- MODEL:
- POWER COMMANDER V
- TYPE:
- AIR/FUEL RATIO
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- COLOR/FINISH:
- RED
- COLOR/FINISH:
- WHITE
- FEATURE:
- INCLUDES OXYGEN SENSOR
- PROGRAMMING:
- AUTOTUNE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$577.77 -
DYNOJET Auto Tune Kit - Harley-Davidson AT-110
DYNOJET
$688.88Fine-tuning your air-fuel ratio across the entire throttle range is the difference between adequate performance and optimized efficiency on every ride. The DYNOJET Auto Tune Kit gives you real-time AFR feedback and semi-automated fuel corrections, so you...10201532- SKU:
- 10201532
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- FEATURE:
- INCLUDES OXYGEN SENSOR
- MODEL:
- POWER VISION
- RIDING STYLE:
- STREET
- PHYSICAL CONNECTION:
- PLUG-IN (OEM STYLE CONNECTORS)
- PROGRAMMING:
- PROGRAMMABLE
- OXYGEN SENSOR PLUG SIZE:
- 18,00 MM (0,71')
- OXYGEN SENSOR PLUG SIZE METRIC:
- 18.00 MM
- PRODUCT NAME:
- TUNING MODULE
- PROGRAMMING:
- PRE-PROGRAMMED
- TYPE:
- AIR/FUEL RATIO
- UNITS:
- EACH
$688.88Qty in Cart: 0Quantity:Price:$688.88Subtotal: -
DYNOJET Auto Tune Kit - Harley-Davidson AT-110B
DYNOJET
$688.88Fine-tuning your air-fuel ratio across the entire throttle range unlocks both fuel economy and peak power—something stock Harley tuning simply can't deliver. The DYNOJET AT-110B Auto Tune Kit gives you real-time AFR feedback and semi-automated...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
$888.88If you're running a shop without access to a Dynojet dyno, the Power Vision Shop Kit Tuner eliminates the barrier to professional-grade bike tuning. This AutoTune Pro Module lets you tune multiple motorcycles from a single base unit, making it the most...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
$688.88The DYNOJET Power Vision Target Tune with O2 Sensor gives you real-time fuel mapping control without sacrificing your factory diagnostics or reliability. By allowing your OEM ECM to interpret wideband oxygen sensor signals, you achieve the precision...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
$688.88If you're running a custom tune on your Harley-Davidson, you know that getting your air-fuel ratio dialed in makes the difference between a bike that merely runs and one that performs predictably across all conditions. The DYNOJET Power Vision Target...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
$688.88Qty in Cart: 0Quantity:Price:$688.88Subtotal: -
DRAG SPECIALTIES Engine Temperature Sensor MC-DRAG047
DRAG SPECIALTIES
$50.91An accurate engine temperature reading is critical for preventing overheating, protecting engine longevity, and optimizing fuel mapping on high-performance builds. The DRAG Specialties MC-DRAG047 is a direct OEM replacement that restores factory-accurate...DS289285- 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
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.
