Improve accelerator response with the Raxiom SpeedForm Series Throttle Response Controller, part number RAX407056. Designed for modern vehicles equipped with electronic drive-by-wire throttle systems, this controller helps reduce the delay between accelerator-pedal input and throttle response. It is especially useful when merging into fast-moving traffic, passing, towing, or seeking a more immediate feel during everyday driving. By enhancing the throttle signal, the controller provides quicker, more responsive acceleration without requiring permanent changes to the vehicle’s factory electronics.
The Raxiom SpeedForm controller offers five selectable driving modes to match different conditions and preferences. Stock mode maintains factory acceleration behavior, while Eco mode is designed for smoother response and fuel-conscious driving. Comfort/Sport mode balances drivability and performance, Sport mode sharpens response for daily commuting, and Race mode delivers the most immediate throttle characteristics. Each mode includes nine sensitivity settings, allowing drivers to fine-tune the controller to their preferred level of response. The illuminated display identifies the selected mode with the corresponding setting indicator.
Installation is straightforward through the factory throttle-position sensor using an OEM-style plug-and-play connector. No wire cutting, permanent modifications, or custom tuning are required, making the Raxiom SpeedForm Series Throttle Response Controller a reversible upgrade for compatible vehicles. The unit is designed to avoid leaving residual diagnostic codes on the factory PCM, helping maintain a warranty-friendly installation. This controller fits select 2011–2013 Ford F-250 Super Duty applications and is intended for vehicles using an electronic accelerator pedal. Verify vehicle compatibility before installation. Professional installation is recommended if you are unfamiliar with drive-by-wire components or vehicle electrical systems.
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