[Mvez]

Just did a back to back drive with my M3 and my 987. I had to take 987 out of winter hibernation for a back road blast....and man, the difference between the stock M3 LSD and the OS Giken in 987 is huge. So easy to feel the coast (off throttle) stability of the Giken, and the lock on throttle and under braking. These cars are both on similar tires, shocks, and spring rates.

In comparison, the M3 feels downright unstable. Corner entry stability could be hugely improved....you can really feel you have a totally open diff....this is where even low pre-load and low locking factor ramps would really help with inducing a little understeer. It's the high speed stuff where the car needs more stability. I'm not adding aero, so the LSD will definitely help.

I was going to try and live with mine for a while, but after this latest drive, I'm calling Diffs and getting the upgrade started.