I watched this last night and thought of you for some reason
[video=youtube_share;D0laOMg-csM]https://youtu.be/D0laOMg-csM[/video]
Makes a nice difference, quite surprised. No engine jerk on lift off when changing gear and a fast crisp gear change.
Decided to put my new stereo in today, very happy with it. Will be looking at speaker upgrade next.