by Philip » Fri Feb 05, 2010 5:48 am
They do make them for 4" outlets. Just watch if your buying a used one and make sure it has a flat flange for mounting. Some HX40's have a beleveled flange setup.
93 W350 Club/cab w/duals, buckets & console, B&W flatbed, G56, 6 spd, 3:07 rears, gages, HX40/16, 4" exhaust, 6X.018 sticks, rear air ride suspension