Yes, you read that correctly. Stabilus door struts manufactured by the original factory supplier. Avoid "launch at the top" issues that aggressively bang the doors at full travel with new production lift pistons by the OEM. If your doors are sagging pistons are most likely the solution. But you can not rule out requiring a torsion bar adjustment and should always perform the hang check to verify proper preload. The Stabilus piston is unique to the DeLorean's requirements for proper door function at 1200 newtons of force. Unlike generic shocks that may be the correct length, the Stabilus unit slows down due to valving techniques proprietary to the design prior to reaching full travel. Over the years cars have been damaged due to excessive torque application to the torsion bars to compensate for weak struts. As outlined above, this should be checked to prevent damage to the cryogenically twisted ultra-rare torsion bar assemblies.