The high-density aluminum core with its new 24 fin per inch core is nearly 40% more efficient than the previous 16 fin per inch 1st Generation intercoolers. KE exclusive 3/4" NPT direct flow billet hard anodized inlet and outlet covers and you have the best money can buy. Available for all popular 6-71 thru 14-71, 250, 256 and 420 superchargers.