The first video is zedx19's completely standard P2 6 (or rallye?), and the second video is my P1 GTI6 with Magnex catback & PiperX IK.
Video Here.
Now, I know I cocked up the 1st to 2nd gear change, but I timed the videos and mine is 0.2 seconds slower to 20, 0.4 seconds slower to 30, and when both cars have completed the first gear change, my car is 0.2 seconds slower in gear to 60. (overall it's about 1 second slower to 60!)
My question is, what could be causing it not to run at 100%? The only things I can think of, are either a stretched throttle cable meaning WOT isn't achieved, or a lambda playing up? But my MPG seems to be inline with what other 6's achieve (about 25-27mpg) so I doubt it's that, really...
Normally, I wouldn't really be bothered, but you can see there is a clear difference between the two cars (along with my terrible gear change) and mine was shot on a slight decline! On my private track of course.
Or is this just a case of some cars have stronger engines than others?