At Turbosmart, we donÕt do ordinary. ItÕs in our DNA to push boundaries and deliver more. ThatÕs why weÕve reimagined the humble oil cap, turning it into a multi-functional powerhouse. Replace the removable centre cap and drop in this o-ring sealed -10AN centre and you are ready to install a pressure sensor, breather or oil return (or any number of other fittings) that you require with next to zero effort required !