Swirl valves in my intake are all sooted up and throwing a dtc. Found this great you tube video from a dodge service tech on how to replace the manifold. I was able to get a new manifold for $244.00 from dodge dealer in Mckinney Texas shipped to me in Az. Good luck to any that attempt this. Doesn't look to difficult, other than laying on top of the engine and front end to do it. I can already feel the bruising .