Originally Posted by ifuonlyknew

The slipper is not a copy of the one from the B44. The new slipper has the ability to adjust the torque splitting ability (kind of like a 1/8 scale center diff). I'm pretty sure the B44s slipper can't do that. The D4 is different than the B44 (or BJ4) in a lot of ways. Not any one thing that is really different (except the front shock tower is behind the front shocks ), but enough small differences, to make them totally different cars. I actually just bought a D4, and I'm hoping that it is as good of a car as it looks like.