1. Replacing part numbers for reference: 001, perfect match for the old car.2. Fitment greatly reduces unwanted torsion steer, understeer.3. Once installed, drivers will notice an immediate difference, as the limited slip differential () automatically biases the torques across the axle to the wheel with the most grip. Unwanted wheel rotation and slip are greatly reduced, resulting in less understeer on front wheel drive machines.4. Controlled is transmitted to all driven wheels, to maximize traction and minimize wheel rotation, particularly in slippery conditions.5. Improves braking performance on front wheel drive car by reducing lock up and minimizing intrusion due to torques transfer action.FITMENT:for 1988-2000 for 1993-1997 Del Solfor 1988-1991 CRXfor 1994-2001 for E30 E36 E46 M3colour:SilverMaterial:Aluminum alloysize:25mm (height) x 70mm (length) x 46mm (width), diameter: 28mmPackage Contents:1 x Limited Slip DifferentialOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.