Mitsubishi Upper Hard Pipe Kit for Evo X752530 BK DESCRIPTION As with all intercooler hard pipe kits, the stock rubber hoses to the intercooler are replaced with solid pipes to eliminate distortion under boost. But the devil is in the details, and that is where similarities end. The COBB EVO X Intercooler Upper Hard Pipe Kit consists of single piece pipes made from mandrel bent aluminum tubing. The results are weld free pipes from the turbo outlet to intercooler inlet without unsightly mid