1、Reference OEM number is RT331. By adding the throttle controller, the main difference you will notice is that acceleration will happen faster and more aggressively. For example, as a standard, 10% of the pedal input will provide a 10% accelerator signal to the ECU. Add a throttle controller, and according to the configuration file settings, when you only have 10% throttle input, it may send a 30% message to the ECU. 2、In addition, it will immediately provide 30% of the signal to the ECU instead of smoothly accelerating over time. From the driver's point of view, with this "power saving mode" enabled, your car feels faster and responds faster than before adding the controller. Fit for Peugeot 308 2007‑2008. 3、In normal mode, your car is restored to its original factory settings, restoring its natural performance. Energy‑saving mode, throttle response is slower, more comfortable, more environmentally friendly, suitable for congested roads, ideal fuel consumption. Race mode, the most severe acceleration mode, is the fastest acceleration response in sports mode, suitable for racing, pursuit of the ultimate Driving pleasure. 4、3‑mode throttle controller, fuel saving + 15%, power response + 68%, ultra‑thin, compact size allows it to be installed anywhere without disturbing the internal design. 5、Plug and play, no external power supply (absolutely no cord cutting, no OBDII socket), special plugs for each specific model, safer and more reliable, and the installation time is less than 5 minutes.