Daytona Twin Tech
Daytona Twin Tec is a trusted leader in motorcycle ignition systems, EFI controllers and high-performance tuning solutions for Harley-Davidson models. Known for delivering reliable power gains, sharper throttle response and precise fuel management, Twin Tec products support both carbureted and EFI bikes. From ignition modules to AFR tools and fuel injection components, Daytona Twin Tec remains a top choice for riders who demand dependable performance upgrades.
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Daytona Twin Tec Llc - 1005-T - Internal Ignition System - Harley Davidson
Daytona Twin Tech
$464.95Daytona Twin Tec Llc - 1005-T - Internal Ignition System - Harley DavidsonFeaturesFeature two advance curve families that are adjustable to accommodate stock and modified enginesSelectable...$464.95 -
Daytona Twin Tec Llc - 1006-EX - External Plug-In Ignition Module - Harley Davidson
Daytona Twin Tech
$328.95Daytona Twin Tec Llc - 1006-EX - External Plug-In Ignition Module - Harley DavidsonFeaturesFeature two advance curve families that are adjustable to accommodate stock and modified enginesSelectable...$328.95 -
Out of stock
Daytona Twin Tec Llc - 1005-EX - Internal Ignition System - Harley Davidson
Daytona Twin Tech
$421.95Daytona Twin Tec Llc - 1005-EX - Internal Ignition System - Harley DavidsonFeaturesFeature two advance curve families that are adjustable to accommodate stock and modified enginesSelectable...$421.95 -
Daytona Twin Tec Llc - 1009-IH - Plug-In Ignition Module - Harley Davidson
Daytona Twin Tech
$428.95Daytona Twin Tec Llc - 1009-IH - Plug-In Ignition Module - Harley DavidsonFeaturesFeatures two advance curve families that are adjustable to accommodate stock and modified enginesSelectable...$428.95 -
Daytona Twin Tec Llc - 17810 - Fuel Injection Electronic Control Module Kit with 3 BAR Manifold Absolute Sensor - '17-'20 Touring
Daytona Twin Tech
$1,437.95Daytona Twin Tec Llc - 17810 - Fuel Injection Electronic Control Module Kit with 3 BAR Manifold Absolute Sensor - '17-'20 TouringFeaturesQuickly auto-tune fuel curves for front and rear cylinders on...$1,437.95 -
Daytona Twin Tec Llc - 17808 - Fuel Injection Electronic Control Module Kit - '17-'20 Touring
Daytona Twin Tech
$1,307.95Daytona Twin Tec Llc - 17808 - Fuel Injection Electronic Control Module Kit - '17-'20 TouringFeaturesQuickly auto-tune fuel curves for front and rear cylinders on a dyno or on-road with new WEGO IIID...$1,307.95 -
Daytona Twin Tec Llc - 17809 - Fuel Injection Electronic Control Module Kit with 2 BAR Manifold Absolute Sensor - '17-'20 Touring
Daytona Twin Tech
$1,371.95Daytona Twin Tec Llc - 17809 - Fuel Injection Electronic Control Module Kit with 2 BAR Manifold Absolute Sensor - '17-'20 TouringFeaturesQuickly auto-tune fuel curves for front and rear cylinders on...$1,371.95 -
Daytona Twin Tec Llc - 22106 - Fuel Injector Set - M8 - 10.62 gm/sec
Daytona Twin Tech
$461.95Daytona Twin Tec Llc - 22106 - Fuel Injector Set - M8 - 10.62 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the...$461.95 -
Out of stock
Daytona Twin Tec Llc - 22099 - Fuel Injector Set - M8 - 9.90 gm/sec
Daytona Twin Tech
$451.95Daytona Twin Tec Llc - 22099 - Fuel Injector Set - M8 - 9.90 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the USASpecsUnitsSetFlow Rate Metric9.90...$451.95 -
Daytona Twin Tec Llc - 22092 - Fuel Injector Set - M8 - 9.22 gm/sec
Daytona Twin Tech
$382.95Daytona Twin Tec Llc - 22092 - Fuel Injector Set - M8 - 9.22 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the USASpecsColor/FinishBlueFeaturesSpray...$382.95 -
Daytona Twin Tec Llc - 22085 - Fuel Injector Set - M8 - 8.49 gm/sec
Daytona Twin Tech
$371.95Daytona Twin Tec Llc - 22085 - Fuel Injector Set - M8 - 8.49 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the...$371.95 -
Daytona Twin Tec Llc - 22078 - Fuel Injector Set - M8 - 7.79 gm/sec
Daytona Twin Tech
$368.95Daytona Twin Tec Llc - 22078 - Fuel Injector Set - M8 - 7.79 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the...$368.95 -
Daytona Twin Tec Llc - 22071 - Fuel Injector Set - M8 - 7.08 gm/sec
Daytona Twin Tech
$331.95Daytona Twin Tec Llc - 22071 - Fuel Injector Set - M8 - 7.08 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the...$331.95 -
Daytona Twin Tec Llc - 22062 - Fuel Injector Set - M8 - 6.24 gm/sec
Daytona Twin Tech
$327.95Daytona Twin Tec Llc - 22062 - Fuel Injector Set - M8 - 6.24 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the USASpecsColor/FinishBlueFeaturesSpray...$327.95 -
Daytona Twin Tec Llc - 22054 - Fuel Injector Set - M8 - 5.38 gm/sec
Daytona Twin Tech
$317.95Daytona Twin Tec Llc - 22054 - Fuel Injector Set - M8 - 5.38 gm/secFeaturesMade using the latest injector technologyIncludes detailed test reportMade in the USASpecsProduct NameFuel...$317.95 -
Daytona Twin Tec Llc - 21092 - High Performance Fuel Injector Set - 9.2 Grams
Daytona Twin Tech
$371.95Daytona Twin Tec Llc - 21092 - High Performance Fuel Injector Set - 9.2 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsProduct...$371.95 -
Daytona Twin Tec Llc - 21085 - High Performance Fuel Injector Set - 8.5 Grams
Daytona Twin Tech
$361.95Daytona Twin Tec Llc - 21085 - High Performance Fuel Injector Set - 8.5 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsTypeHigh...$361.95 -
Daytona Twin Tec Llc - 21106 - High Performance Fuel Injector Set - 10.6 Grams
Daytona Twin Tech
$461.95Daytona Twin Tec Llc - 21106 - High Performance Fuel Injector Set - 10.6 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$461.95 -
Out of stock
Daytona Twin Tec Llc - 21078 - High Performance Fuel Injector Set - 7.8 Grams
Daytona Twin Tech
$357.95Daytona Twin Tec Llc - 21078 - High Performance Fuel Injector Set - 7.8 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsTypeHigh...$357.95 -
Daytona Twin Tec Llc - 21071 - High Performance Fuel Injector Set - 7.1 Grams
Daytona Twin Tech
$331.95Daytona Twin Tec Llc - 21071 - High Performance Fuel Injector Set - 7.1 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$331.95 -
Daytona Twin Tec Llc - 21054 - High Performance Fuel Injector Set - 5.4 Grams
Daytona Twin Tech
$317.95Daytona Twin Tec Llc - 21054 - High Performance Fuel Injector Set - 5.4 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsProduct...$317.95 -
Out of stock
Daytona Twin Tec Llc - 20062 - High Performance Fuel Injector Set - 6.2 Grams
Daytona Twin Tech
$327.95Daytona Twin Tec Llc - 20062 - High Performance Fuel Injector Set - 6.2 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$327.95 -
Daytona Twin Tec Llc - 21062 - High Performance Fuel Injector Set - 6.2 Grams
Daytona Twin Tech
$327.95Daytona Twin Tec Llc - 21062 - High Performance Fuel Injector Set - 6.2 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsRiding...$327.95 -
Out of stock
Daytona Twin Tec Llc - 20092 - High Performance Fuel Injector Set - 9.2 Grams
Daytona Twin Tech
$381.95Daytona Twin Tec Llc - 20092 - High Performance Fuel Injector Set - 9.2 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$381.95 -
Daytona Twin Tec Llc - 20085 - High Performance Fuel Injector Set - 8.5 Grams
Daytona Twin Tech
$361.95Daytona Twin Tec Llc - 20085 - High Performance Fuel Injector Set - 8.5 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsTypeHigh...$361.95 -
Daytona Twin Tec Llc - 20078 - High Performance Fuel Injector Set - 7.8 Grams
Daytona Twin Tech
$351.95Daytona Twin Tec Llc - 20078 - High Performance Fuel Injector Set - 7.8 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$351.95 -
Daytona Twin Tec Llc - 20039 - High Performance Fuel Injector Set - 3.9 Grams
Daytona Twin Tech
$292.95Daytona Twin Tec Llc - 20039 - High Performance Fuel Injector Set - 3.9 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$292.95 -
Daytona Twin Tec Llc - 20071 - High Performance Fuel Injector Set - 7.1 Grams
Daytona Twin Tech
$335.95Daytona Twin Tec Llc - 20071 - High Performance Fuel Injector Set - 7.1 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the USASpecsFlow Rate...$335.95 -
Daytona Twin Tec Llc - 20054 - High Performance Fuel Injector Set - 5.4 Grams
Daytona Twin Tech
$317.95Daytona Twin Tec Llc - 20054 - High Performance Fuel Injector Set - 5.4 GramsFeaturesDetailed test report included with each setMade using the latest injector technologyMade in the...$317.95 -
Out of stock
Daytona Twin Tec Llc - 17400 - TDFI Auto-Tuning Fuel Injection Kit - Twin Cam
Daytona Twin Tech
$1,135.95Daytona Twin Tec Llc - 17400 - TDFI Auto-Tuning Fuel Injection Kit - Twin CamFeaturesKit includes TCFI plug in fuel injection controller, USB interface for PC, software, WEGO IID dual channel wide...$1,135.95 -
Daytona Twin Tec Llc - 17823 - Auto-tune Electronic Fuel Injection Control Module Kit with 3 BAR Manifold - M8 Softail
Daytona Twin Tech
$1,437.95Daytona Twin Tec Llc - 17823 - Auto-tune Electronic Fuel Injection Control Module Kit with 3 BAR Manifold - M8 SoftailFeaturesQuickly auto-tune fuel curves for front and rear cylinders on a dyno or...$1,437.95 -
Daytona Twin Tec Llc - 17822 - Auto-tune Electronic Fuel Injection Control Module Kit with 2 BAR Manifold - M8 Softail
Daytona Twin Tech
$1,371.95Daytona Twin Tec Llc - 17822 - Auto-tune Electronic Fuel Injection Control Module Kit with 2 BAR Manifold - M8 SoftailFeaturesQuickly auto-tune fuel curves for front and rear cylinders on a dyno or...$1,371.95 -
Daytona Twin Tec Llc - 17820 - Auto-tune Electronic Fuel Injection Control Module Kit with 3 BAR Manifold - M8 Touring/Trike
Daytona Twin Tech
$1,437.95Daytona Twin Tec Llc - 17820 - Auto-tune Electronic Fuel Injection Control Module Kit with 3 BAR Manifold - M8 Touring/TrikeFeaturesQuickly auto-tune fuel curves for front and rear cylinders on a...$1,437.95 -
Daytona Twin Tec Llc - 17819 - Auto-tune Electronic Fuel Injection Control Module Kit with 2 BAR Manifold - M8 Touring/Trike
Daytona Twin Tech
$1,371.95Daytona Twin Tec Llc - 17819 - Auto-tune Electronic Fuel Injection Control Module Kit with 2 BAR Manifold - M8 Touring/TrikeFeaturesQuickly auto-tune fuel curves for front and rear cylinders on a...$1,371.95 -
Daytona Twin Tec Llc - 17813 - Fuel Injection Electronic Control Module Kit with 3 BAR Manifold Absolute Sensor - '18-'20 Softail
Daytona Twin Tech
$1,437.95Daytona Twin Tec Llc - 17813 - Fuel Injection Electronic Control Module Kit with 3 BAR Manifold Absolute Sensor - '18-'20 SoftailFeaturesQuickly auto-tune fuel curves for front and rear cylinders on...$1,437.95 -
Daytona Twin Tec Llc - 17812 - Fuel Injection Electronic Control Module Kit with 2 BAR Manifold Absolute Sensor - '18-'20 Softail
Daytona Twin Tech
$1,371.95Daytona Twin Tec Llc - 17812 - Fuel Injection Electronic Control Module Kit with 2 BAR Manifold Absolute Sensor - '18-'20 SoftailFeaturesQuickly auto-tune fuel curves for front and rear cylinders on...$1,371.95 -
Daytona Twin Tec Llc - 17811 - Fuel Injection Electronic Control Module Kit - '18-'20 Softail
Daytona Twin Tech
$1,307.95Daytona Twin Tec Llc - 17811 - Fuel Injection Electronic Control Module Kit - '18-'20 SoftailFeaturesQuickly auto-tune fuel curves for front and rear cylinders on a dyno or on-road with new WEGO IIID...$1,307.95 -
Daytona Twin Tec Llc - 3020 - External Ignition Kit - Harley Davidson
Daytona Twin Tech
$565.95Daytona Twin Tec Llc - 3020 - External Ignition Kit - Harley DavidsonFeaturesAllows the use of an external ignition which helps prevent heat-related ignition failures by replacing heat-sensitive...$565.95 -
Daytona Twin Tec Llc - 3021 - External Ignition Kit - Harley Davidson
Daytona Twin Tech
$664.95Daytona Twin Tec Llc - 3021 - External Ignition Kit - Harley DavidsonFeaturesAllows the use of an external ignition which helps prevent heat-related ignition failures by replacing heat-sensitive...$664.95 -
Daytona Twin Tec Llc - 17700 - TDFI Auto-Tuning Fuel Injection Kit - Touring/Trike
Daytona Twin Tech
$1,285.95Daytona Twin Tec Llc - 17700 - TDFI Auto-Tuning Fuel Injection Kit - Touring/TrikeFeaturesKit includes TCFI plug in fuel injection controller, USB interface for PC, software, WEGO IID dual channel...$1,285.95
Daytona Twin Tec – Ignition Systems, EFI Controllers & Performance Tuning
Daytona Twin Tec has established itself as one of the most respected names in V-twin performance, offering advanced ignition systems, EFI controllers and electronic tuning tools built for Harley-Davidson motorcycles. Their products are engineered to enhance spark accuracy, fuel delivery, throttle response and overall engine efficiency across carbureted and EFI platforms. Whether optimizing a stock engine or upgrading a fully built powertrain, Daytona Twin Tec components provide tuners with precise adjustability and long-term reliability.
Their ignition lineup includes the well-known TC-88 modules, Internal and External Ignition Kits, Single Fire systems and high-output ignition coils designed to improve combustion stability and mid-range performance. Riders upgrading from factory ignition systems benefit from smoother idle, quicker starts and improved acceleration. For EFI models, standout tools such as the TCFI Gen 4/Gen 5 Controllers, Twin Tuner II, TCFI Gen S Auto Tune and the WEGO III AFR Sensor Kit allow accurate fuel mapping, real-time AFR monitoring, data logging and seamless integration with performance cams, intakes, and exhausts.
Supporting components, including fuel injector sets for Milwaukee-Eight engines, O2 sensor plugs, weld-in bungs and universal plug-wire kits, round out Daytona Twin Tec’s complete ecosystem of tuning and performance electronics. With broad fitment coverage across Touring, Softail, Dyna and Sportster models, the brand remains a trusted choice for professional tuners, performance shops and riders seeking dependable power upgrades. Daytona Twin Tec continues to deliver the precision, durability and tuning control needed to maximize a Harley-Davidson engine’s true potential.