I have been live chatting with JR tuning this morning. Guy did not know it was advertised for the is250. Told me to ring them tomorrow, so may do see what they say.
Trouble with non turbo cars, you are limited to what gains are possible. Torque is another kettle of fish altogether.
Just recieved this from poland.
hellofirst of all I want to thank you for your interest in my auction.So it will work in your car.Adds more power to the engine, from 15 to 25BHP - the Increase in power depends on the capacity and the initial power of the engine.Car Reaches higher maximum speed, better acceleration, better dynamics and responds better for the gas pedal.The device after connecting the OBD2 diagnostic connector reads the data from the computer of the car. Gets all the information supplied to the computer and analyzes them. On the basis of the original map, Having collected data creates a new one. Selecting the appropriate settings algorithms operate in a safe limit of 30% of the output power. The generated map is shown on the external controller which is now the car computer will download the new map. When you disconnect your computer back to its factory settings - reads the original map from your memory.I invite you to buyIf you have any questions, write to mebest regardsDarek