Conclusion: I purchased a pair of these and let me tell you the sound was more than incredible. Everything was clear and precise . These things have some bass to them even though playing in the 30-40 hrtz range is a little hard for them they still make it heard and even felt in my car.
Summary: Bought these thinking that I will need to modify something because the guide says that they will not fit in the doors of my challenger. They fit perfectly, make sure you attach the spacer that is included with the speakers. Not sure why the tech advisors say they won't fit.