Originally Posted by BMW-M-Mexico
Yea, I agree!! But, what I can say is what I feel and what these guys showed me and the engines they work on. So, even if these things are not for some reasons correct, the car is a tad over 20kph faster on a long streight where I used to do almost 240 I'm moving above 260. The car pulls harder from the start. Feels great really!!! No kiding.
That is a solid test if you are pulling higher road speeds consistently under the same circumstances.