One problem related to manifold/header/muffler/tail pipe has been reported for the 2008 Dodge Magnum. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2008 Dodge Magnum based on all problems reported for the 2008 Magnum.
The car wont shift gears easily and start up properly. I was told that it was the intake manifold. And that it has happened on several cars before mine. This sounds like a defect. I can be on the highway and the car want shift from slow to fast properly, which can cause a scary situation if some isn't paying attention.