The Bosch manufacturer part number 0258010038 is a reliable and high-performance oxygen sensor. This oxygen sensor is second hand and came off a stock MK6 GTI. For any other questions or queries please do not hesitate to contact me. This Bosch Lambda O2 Oxygen Sensor (0258010038) OEM is a top-quality product made from metal material. It comes with a wire harness and features a bolt-on mounting style that allows for easy placement on the front of your vehicle. Designed to fit Audi, Porsche, Seat, Skoda, and VW models, this unit is a direct fit and has a sensor type of oxygen sensor.