The 2011 Ford Super Duty equipped with the 6.7L Powerstroke is one of the most capable and reliable trucks on the road today. But, when Mishimoto heard about 6.7L Powerstroke air - to - water intercoolers leaking internally, we set to work making the 6.7L Powerstroke even better. The Mishimoto 6.7L Powerstroke intercooler kit brings even more reliability to the 6.7L by ditching the stamped and stacked plate stock design. Instead, our intercooler is built with cast aluminum end tanks that are precision TIG welded to the robust bar - and - plate core. The cast end - tanks reduce potential failure points, making them more reliable than cut and welded tanks. Further durability is added by the inclusion of aluminum intercooler pipes and silicone couplers with Duracoreandtrade