EVC ELECTRONIC THROTTLE CONTROLLER TO SUIT LEXUS IS250 GSE20R GSE25R GSE30R GSE35R 4GR-FSE 2.5L V6Modern vehicles rely on 'fly by wire' throttle technology to measure pedal pressure & position to send signals to the engine's computer and convert it to acceleration. Many of these systems have a noticeable delay. EVC throttle controllers by iDrive (rebranded as Ultimate9) reduce this lag and improve response to make the acceleration feel more responsive. Key Features: Eliminates throttle lag. Increases throttle response. Improves overall