Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans Radiator Cap Mishimoto High-Pressure 1.3 Bar / Large Mishimoto high Performance intercooler, watercooler, oilcooler and oil-catch cans 1.3 bar high-pressure radiator cap raises the boiling point of engine coolant to provide a safer and more efficient cooling system - Ergonomically designed for easy removal and installation - Comes standard with all Mishimoto Performance Aluminum Radiators that require large radiator cap - Fits most domestic vehicles Pressure Tolerance: 1.3 Bar Fits: 42mm Fill Necks Getting the most out of your performance parts comes down to the details. When faced with hard driving conditions, a vehicle/s cooling system becomes highly pressurized. Stock caps are not equipped to handle higher pressure, causing fluid to leak out into the overflow reservoir. The Mishimoto High-Pressure 1.3 Bar Radiator Cap is rated at a higher pressure and will keep coolant where it needs to be- flowing within the system. Rated at 1.3 Bar pressure. Fits most domestic vehicles.