Ford 2011-2015 6.7 Downpipe
Replace that restrictive double wall factory downpipe on your 2011-2014 Ford 6.7 truck with this mandrel bent 3.5" to 4" dia. two piece downpipe. Bolts to factory ball and socket flange in front of the factory CAT/DPF, also would work with aftermarket exhaust that use the factory flange. Improve throttle response and turbo spool up, reduce EGT and free up the exhaust flow on your 6.7 Ford engine.