this is fairly, if not very, common. i hear a pop or two after getting off the interstate just after coming to a stop. the last of your links related to the emissions valve is what you are hearing if the sound seems like it is coming from the passenger side rear of the car. if that's the case consider it just a normal characteristic. maybe there is a fix but your crossfire will operate just fine with the occasional pop.

the issue with sway bar linkages making thumping noises occurred in some crossfires because they were not torqued properly at the factory. but those clanks or thumps are much more noticeable and occur when turning not when sitting still.