OEM BMW part - Z3 Steering Rack (Rebuilt) - ATLANTIC ENTERPRISES brand. Includes core charge. Fits: Z3 1.9, 2.3, 2.8, 3.0, Coupe 2.8, and Coupe 3.0. Also can be used as a common upgrade to E36 3 series cars to tighten steering through less turns for complete left to right lock out. KO runs this retrofit on our 97 M3 track car featured in Bimmer magazine (the ZF brand). For the ZF brand, see part number: OEM-BMW-32-13-1-095-575-zf.