Although you can technically still drive your 2002 without a heat shield, it's a needed safety feature that was put on your car for a reason. This part manages and controls the heat generated by the exhaust gases as they exit the engine. These are Genuine BMW and they are now NLA.
Genuine BMW 2002 Exhaust Manifold Protective Cover (Non tii)
Fits the following vehicles:
114: Details on 114
114 1602 Sedan, U.S.
114 2002 Sedan, U.S.
114 1502 Sedan, Euro
114 1600 Sedan, Euro
114 1600 Convertible, Euro
114 1602 Touring, Euro
114 1602 Sedan, Euro
114 1802 Touring, Euro
114 1802 Sedan, Euro
114 2000 Touring, Euro
114 2002 Convertible, Euro
114 2002 Sedan, Euro
114 2002 Touring, EuroFits the following vehicles:
NK: Details on NK
NK 2000 Sedan, U.S.
NK 1600 Sedan, Euro
NK 1800 Sedan, Euro
NK 2000 Sedan, Euro
NK 2000C Coupe, Euro
NK 1500 Sedan, Euro