The Turbo XS Top Mount Intercooler is the largest top-mount intercooler you can fit under your hood. Dual intercooler inlets take full advantage of the intercooler's size by evenly distributing the air across the bar- and-plate core for more efficient cooling, while the large cast alloy end tanks distribute heat evenly across the intercooler and aid in smoothing air flow. Massive bar and plate construction reduces pressure drop over stock allowing the turbocharger to spin slower while producing the same boost pressure in the intake manifold. Not only will this prolong turbocharger life but will also reduce the air temperature exiting the turbocharger, effectively increasing intake charge density. This Kit is a direct bolt on for the WRX additional equipment is needed for STI fitment. Please Call for more information.