Description By increasing the effective bypass pressure of your radiator cap you can increase the effective boiling point of your engine cooling system. This means your coolant needs to become hotter before it will start to boil. This cap is designed to fit older radiators that use the larger 42mm fill neck, this is the same size as used on the first Generation Rx-7 SA22c/FB 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 pressurised. OEM caps are not equipped to handle higher pressure, causing fluid to leak out into the overflow reservoir. The Mishimoto radiator cap is rated at a higher pressure and will keep coolant where it needs to be-flowing within the system. The sleek carbon fibre exterior will add an unexpected touch of style. Constructed from hand laid carbon fibre. Rated at 1.3 Bar (19 lbs pressure). Fits most import vehicles. 1.3 bar (19 psi) 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 aluminium Radiators that require small radiator cap Fits most import vehicles Mishimoto Lifetime Warranty
