Accelerate Faster: Compatible for the Audi A4 , FN Tuned removes your gas pedal’s signal speed delay, resulting in faster acceleration Plug and Play Device: FN Tuned connects in-line to your accelerator position sensor, making it easy for anyone to do it themselves in minutes 36 Unique Throttle Maps: Each FN Tuned is manufactured to compliment your vehicle with unique throttle maps that are compatible for the A4 . Whether you're a daily driver or a car enthusiast, there is a mode for you Anti-Theft Mode: This mode is compatible for the A4 and disables your gas pedal's function, preventing thieves from stealing your SUV Enhance Efficency: Our FN Slöw mode can significantly slows throttle response to improve efficiency What is FN Tuned? FN Tuned is a throttle response controller designed to help reduce delays in throttle input by modifying the signal from the accelerator pedal. Most modern vehicles use an electronic throttle control (ETC) system instead of a traditional cable, meaning the vehicle's ECU (engine control unit) manages throttle response electronically. Installation and Features: FN Tuned is designed for easy plug-and-play installation. It offers 36 adjustable sensitivity levels and includes an Anti-Theft Mode feature. These settings allow drivers to tailor throttle response based on their preferences. FN Tuned connects to the accelerator pedal and can typically be installed in a few minutes without special tools. Return Policy: 30-day return policy. Please refer to the seller’s return policy for full details. Important Note: FN Tuned does not function when cruise control is active. During cruise control, throttle input is managed entirely by the vehicle’s ECU.