Gearbox adapter CNC machined from ultra-durable 2017a duralumin then hand finished. High precision and alignment guaranteed. Engine: BMW M70 / M73 Gearbox: Audi 01E 2.5tdiTransmission adapter. Made in CNC technology from ultra-durable duralumin 2017a, and then finished manually.High precision and fit guaranteed.Engine: BMW M70 / M73Transmission: Audi 01E 2.5tdi Gearbox adapter CNC made of ultra-durable 2017a duralumin, then hand finished.High precision and fit guaranteed.Engine: BMW M70 / M73 Gearbox: Audi 01E 2.5tdi