Get the graghite shock towers and get the graphite upper deck and save the alloy for a shelf queen.Alloy will add weight to your car and slow it down and in the event of a crash will bend and need to be replaced depending on the grade of alloy you buy.Graphite will also break but is much cheaper to replace and is allot lighter.Keep the plastic A-arms or up-grade to the plastic/graphite ones they sell.I still use the plastic a-arms and all the rest of the plastic parts on mine and see no reason to change them.