Description
Fitment: 2006-2017 Harley Delphi (Cable Driven) Models (2005-2007 FLH/FLT Touring models, 2005-2015 Softails and Dyna 2005-2017 Dynas
The Horsepower Inc 51mm throttle body for Harley Twin Cam models delivers a reliable airflow upgrade for riders who want stronger throttle response and smoother acceleration. Horsepower Inc designs this throttle body specifically for 2006–2017 cable-driven Delphi Harley-Davidson Twin Cam engines, ensuring a direct bolt-on fit and consistent performance.
Because engine airflow controls how efficiently power reaches the rear wheel, a larger throttle body allows your Twin Cam to breathe more freely. As a result, riders feel quicker throttle response and improved mid-range pull. Additionally, this 51mm throttle body supports performance builds that include intake upgrades, exhaust systems, and camshaft modifications.
Key Features and Benefits
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Improves airflow compared to the factory throttle body
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Sharpens throttle response across the RPM range
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Supports Stage 2 and Stage 3 Twin Cam engine builds
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Bolts directly to cable-driven Delphi fuel-injection systems
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Retains OEM electronics and cruise control compatibility
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Delivers consistent performance for street and touring use
Unlike universal options, Horsepower Inc machines this throttle body specifically for Harley Twin Cam engines. Therefore, installers complete the upgrade without fabrication or fitment issues. However, professional tuning helps maximize airflow gains and ensures proper air-fuel ratios after installation.
Fitment Details
This throttle body fits Harley-Davidson Twin Cam motorcycles from 2006 through 2017 that use cable-driven Delphi fuel injection. It does not fit throttle-by-wire applications.
Why Riders Choose Horsepower Inc
Horsepower Inc focuses on precision machining and real-world performance. Consequently, riders trust these throttle bodies for durability, repeatable results, and smooth rideability. If you want a proven airflow upgrade that works with your existing performance parts, this 51mm throttle body delivers.
Add High Flow Injectors to your Throttle body
Horsepower Inc High Flow Injectors are a direct drop-in replacement for Harley Davidson Motorcycles. These injectors feature a specifically engineered spray pattern that optimizes fuel atomization. These injectors have a fuel deliver rate of 5.3gps and are highly recommended for engines making or exceeding 110 horsepower.
