No idea to be honest this is all that white coated rubber gloved modern mechanic brigade,but from my experiance any add on to the original electronics will not work as the designers of the car have made it to the maximum permisable for that engine to strike a happy compromise to fuel economy and performance ,these boy racer gismos never work without causing problems down the line like over revving the engine or causing too much fuel to be used with catastropic consequences for the catalytic converter .Leave well alone and if you want a faster car buy a jaguar or a amg merc which will have the brakes and rolling gear to handle the speed ,prefferably the jaguar