Pistons are manufactured in Argentina with technology transferred from European manufacturers. SUPERTECH pistons are manufactured from extruded high silicon, enhanced 4032 alloy (with additional Cu, Ni & Mg) that has low thermal expansion, excellent wear resistance and higher thermal conductivity. Our pistons with this alloy have withstood up to 42psi of turbo boost, with alcohol, without any problems. A 2 or 3 forging steps process yields a fine structural grain oriented in fibers in the same direction of the stresses.