Top Mount intercooler kit + Piping For 2007-2011 Subaru Impreza WRX Intercooler + Piping + Silicon Hose + T-Clamp Fits Factory Stock turbo and BOV, Re-circulated to keep Optimized factory ECU Tuning. CXRacing's kit is designed with Short Route run, highly efficient. With much Bigger core (73% Bigger), Flows and cools air a lot more better. Note: Due to bigger intercooler, Factory Rubber/Plastic Scoop needs to be trimmed/removed.