function of first generation Windbooster first generation is a small plug n play electronic module which is installed on the drive-by-wire(DBW) module of your gas pedal, aims to overcome this throttle response delay for ETC-equipped vehicles, providing crisp instant acceleration at the driver’s disposal.This is a great way to unleash the real power your vehicle has. 3 Acceleration Modes:  Half acceleration, Full acceleration, Off mode Half acceleration: Increase the throttle sensitivity, speed up the throttle response and reduce lag Full acceleration: Full of power, pursue ultimate driving pleasure, enjoy speed and passion Manual/Auto Transmission: Factory Setting is full acceleration, manual transmission mode Specific model for Each Specific vehicle: Specific model for each specific vehicle to ensure the safety and stability Plug n play Installation: Plug and play without external power supply (absolutely no cutting of wire & does not use OBDII socket ), less than 5 minutes install   If you are a wholesaler, please send inquiry to us Free Shipping