Nissens radiators are submitted to corrosion, vibration, pressure impulse, thermal expansion, and thermal performance tests. Nissens radiators are manufactured and tested to OE specifications. This part generally fits BMW vehicles and includes models such as 128i,325i,325xi,328i xDrive,328i,328xi,330i,330xi,M3,Z4 with the trims of Base Convertible 2-Door,Base Coupe 2-Door,Base Sedan 4-Door,Base Wagon 4-Door,sDrive30i Convertible 2-Door.