LOL.....reverse

But my original question was going "taller" in the spline/pinion....2.8 against the stock 3.07.
32Krazy was commenting that others have gone the other way....3.55

1) I originally thought longer legs were in order here given our torque etc.... although I'm hearing it will "broaden" the gear spacing and would be a little less "flexible" for racing. Hence 32's note re 3.55 would would bring the spacing in and possibly "add" flexibility in shifting out of corners. I guess longer (2.8) would reduce a little wheel slip as well, but obviously you wouldnt power out as quick compared to a 3.55.

As stated my long legs were to keep the drive through the full 1/4
The data I'm looking at 11.7/117mph finds a 3rd to 4th redline shift at 9.4seconds through the 1/4 at 100mph, I'm guessing that that equals time off the pull and could be worth 0.1 or maybe more....???
Going to 2.8 would push this shift out another 10mph. So it would be changing at the flag - well 1 second later anyway.

2) if anyone knows of any off the shelf kits for the SLK32 bolt on diff - much appreciated.