UPPER INTERCOOLER S PIPE Our Upper Intercooler Pipe is made from 2 1/4in outside diameter x 18ga thk mandrel bent steel tubing. It replaces the stock rubber hose and Throttle Body Elbow for a complete hard pipe system. Includes: coupling, 2 stainless steel hose clamps, Four M8 x 70 mm long Hex Bolts & washers. Part Numbers: UIP-2gB