The solution is the Mishimoto direct-fit top-mount intercooler engineered specifically for the 2008--2014 Subaru WRX. This intercooler utilizes durable cast aluminum end tanks TIG-welded to a highly efficient dense bar-and-plate core.
Mishimoto for 08+ Subaru Impreza WRX/STI Aluminum Radiator Stay - Anodized Black
Mishimoto for 08 Subaru WRX Black Silicone Induction Hose
Mishimoto for Subaru 08-14 WRX/ 05-09 Legacy GT Aluminum Coolant Expansion Tank
Mishimoto for 04-07 Subaru WRX STI (STI only) USDM Black Silicone Intercooler
Mishimoto for 02-07 Subaru Impreza WRX Aluminum Radiator Stay - Anodized Black
Mishimoto for 2018+ Honda Accord 1.5T/2.0T Performance Intercooler (I/C Only) -