Gearbox adapter CNC made from ultra-durable 2017a duralumin then hand finished High precision and fit guaranteed Motor: Mitsubishi 4G63 Gearbox: Audi 01E 2.5tdi Gearbox adapter CNC made from ultra durable 2017a duralumin, then Hand finished. High precision and fitting guaranteed. Engine: Mitsubishi 4G63 Gearbox: Audi 01E 2.5tdi