Supertech Valve Spring and Retainer Kit DUAL SPRING 70LB Ford/Mazda Duratec 2.0L/2.3L Mazdaspeed 3 2007-2013 | Mazdaspeed 6 2006-2007
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$588.92$636.51
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Color
Black
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Description
-Supertech valve springs are made with premium Superclean Chrome Silicon Vanadium Steel alloy for higher performance & durability at high rpms and better memory. -Computer designed to ensure that wire stress levels do not overpass the li...