I'll try it on my way home later. I've run my best friends 335i (6spd) a bunch of times and his is a little quicker. The X does shift very slow.. that's where I lose most of my ground on him! They weigh 3600, not 3800 so it should read around 260whp.

Curious to see how much you gained with the exhaust mod. Where did you place the phone for the run?