I have a 2006 stratus 2.4l that recently started having less acceleration than usual. No codes, idles fine. Wondering if it could be CV joints. Both inner boots have a little grease around them but no clicking or other tell tale signs. Any thoughts would be appreciated

 

Doubt it. Loss of acceleration points more to a fuel or ignition issue.

 

would a clogged cat cause decreased acceleration?
it only has 130,000 on it but is almost 20 years old

 

Most definitely. You're likely to notice a smell and have either an O2 sensor go bad, or a code related to an O2 sensor if the catalytic converter is bad though.