Forged piston are the best choice when strength and durability are prime consideration. Each forged piston is made by heating the aluminium alloy to below melting point and forcing it into mould under pressure (forging) result in more ductile product.
Racing pistons are manufactured specifically for high performance and serious race. Designed with the refined shape, strengthened material and maximized light weight to correspond in high RPM. Made from both aluminium and silicon this combination determine overal strength vs wear resistance.