Get the Exhaust Adapters that will make customizing your 2003-2007 Ford 6.0L Powerstroke's exhaust a breeze. Reducers range in size from 3.5" and go all the way up to 7" diameter. These adapters are constructed from aluminized and stainless steel to ensure they match your existing application and exhaust system. Magnaflow, MBRP, and Silverline are just some of the top tier brands you'll find when searching for exhaust components.