Guys ano mas ok between the 2? and should it be copper or plastic? Im about to replace my old radiator na kasi since na overhaul na to dati and lately lagi na nagooverheat car ko and pansin ko may mga rust particles na rin sa loob everytime I open the radiator cap. Its for my corolla 1997 gli. How much din ang labor for radiator replacement? and can you recommend a good shop? im in pasig/marikina area.