All of a subben durango started sputtering while driving

Hello, performance issues from your engine are related to either ignition spark, fuel delivery, air through the intake manifold and into the engine, exhaust flow, proper compression and engine timing. I can't begin to guess what is happening -- without being able to examine and evaluate the vehicle. One of those areas has experienced some kind of failure, but it's impossible to know which until hands on testing can check it out.