RS Water Thermostat opening earlier than the standart OEM part and gives your engine a quicker cooling. The RS Fan switch with his two steps is like the thermostat quicker turning the fan on and gives your engine the needed cooling specialy when engine is tuned. With new gaskets. Opening Temp. Thermostat 71°C Fan switch step one @ 80°C/step two @ 85°C Attention: We can only offer you the 3 pin long plug for the VR6 early Version and not the square one. Please note this before you order! Manufacturer Information about the manufacturer BAR-TEK BAR-TEK Motorsport GmbH Im Rauschen Auel 3, 51491 Overath-Brombach, Germany info@bar-tek.com