In my old m3 sport changed accl response.
Well I just hopped in my car and did a lap up and down the driveway w/ and w/o.....now I'm not sure if it changes anything In throttle response. But I always keep it on
2007 X5 4.8 Black Saphire, Black leather, Sport, Premium, Tech, Cold, 20".
2010 335xi M Sport
2003.5 e46 M3