Champions use OE recomendation for any car always, autolites and other brands should only be used when you absolutely have no way to get the OE part and you have to get the car running, that's should be the only time, plugs have resistors in the porcelin insulation inside, each and every brand has a different style resistor, some bigger some smaller, Chrysler designs their engines to run off champion plugs and the engineers for their engines design them to be able to run on the rate at which the resistor wears so using a different plug can leave things out of sync, and it may not be recognizable at first but in time and as mileage increases you will see and feel the difference in performance, Chrysler designed the motors for optimal performance and economy already in mind, remember, motor trend and such magazines test their cars against their rivals from GM and other counterparts and they tell the good and the bad, and they also test the performance, so it doesn't make sense to leave anything on the table you bring it all from the get go and that's what the manufacturer does because they want the product to be able to perform at its best under and at load at all times.
So remember the guy the engineered your car and engine makes six figures a year for a reason because he knows things you don't so why try to reengineer your car when you never been to engineering school, if you are trying to extract power and performance you go hard or go home, meaning there is no performance gain in plugs and wires that are worth mentioning, the guys that run quarter mile strips can tell you it starts from the bottom up and costs money lots of money and it aint easy, so don't get ahead of yourself if you build a performance engine then it might call for something different but on an OE engine it runs best and performs best on OE parts even most parts at the parts store have to meet or exceed OE specs. Performance is different and therefore is something to leave to the people that know it best or else you are slapping in parts and hoping for miracles and probably not achieving anything worth talking about, when you build performance engines you are reengineering it for something different than what it was normally built for so that is why you need to know what you are doing or bad things start to happen or it just performs badly.