J'S RACING RADIATOR CAP

In order to get raise the effciency of the cooling system, a high pressure radiator cap is the most inexpensive to do it. J's Racing offer high pressure radiator cap at 1.3kg and cooling efficiency will be improved by 22 percent or higher.
Type N is used for OEM radiators
Type S is used for Koyo and other aftermarket radiators 

PRICE: 35€