Description
Fitment: 2008-2016 Throttle By Wire FLH/FLT Touring Models & 2016-2017 TBW Softail
CSR 55mm Throttle Body for Twin Cam Harley-Davidson
Upgrade your Twin Cam engine with the CSR 55mm Throttle Body.
This high-flow throttle body improves airflow.
It also sharpens throttle response.
The stock throttle body can restrict airflow.
Because of this, horsepower and throttle response suffer.
However, the CSR 55mm throttle body allows the engine to breathe more efficiently.
As a result, your engine can produce more power.
This is especially true when paired with proper tuning.
This throttle body is designed for throttle-by-wire Twin Cam models.
In addition, it remains compatible with factory electronics.
It also works with cruise control and fuel systems.
Therefore, ride quality stays smooth.
Drivability remains predictable at all speeds.
Each throttle body is precision-machined by CSR.
Moreover, the CNC-ported bore improves airflow.
This helps maintain strong air velocity across the RPM range.
Key Features & Benefits
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55mm high-flow throttle body
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Designed for Twin Cam throttle-by-wire applications
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Improves airflow and throttle response
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CNC-machined for consistent performance
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Retains factory electronics and cruise control
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Suitable for stock or performance engine builds
Why Choose the CSR 55mm Throttle Body?
This throttle body supports mild builds.
It also works well for high-performance engines.
Additionally, it pairs well with upgraded intakes and exhaust systems.
When properly tuned, it helps unlock more horsepower and torque.
In short, this upgrade delivers reliable airflow gains.
At the same time, it preserves factory-like drivability.
Need to upgrade your air intake to match your new larger throttle body?
Cycle Solutions Inc offers several styles of motorcycle air intakes that have a backing plate specifically for a 58mm and larger throttle body. Our intakes have larger openings that match up perfectly to our large throttle bodies so that there is no air flow restrictions letting your throttle body breathe! Be sure to check out our air intake section when purchasing a larger throttle body.
