Hi everyone. Just was curious to know if this is a good item or not. Its a chip which connects to the OBD connection on the car, Its a piggyback chip. Is it any good and would it work in my car and would it improve fuel economy? Seems too good to be true
http://www.ebay.co.uk/itm/Performance-Economy-ECU-remap-chip-LEXUS-IS200-250-IS300-350-/170695150830?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27be394cee
Thanks in advance for any replys.