Cxracing-liquid Water to Air Intercooler 18"x13"x4.5", 4.5" Core: 10"x9"x4.5" Overall Size: 18"x13"x4.5" Core Size: 10"x9"x4.5" Two 3" Air Inlet Outlet Two 3/4" Water Inlet Outlet 4.5" Thick Core