I bought my car used at 24K miles. I wanted to wait to mod until the 33K warranty was up.

But I found that my trips to the dealer only resulted in "that is normal" claims by them, so the warranty was basically useless.

Now I'm out of 33K miles and a whole bunch of rattles, most likely bearings, and vibrations have popped up, so again the warranty was useless.

So in my opinion, just mod the car since you're pretty much on your own with a chrysler vehicle anyways.