Not for the Charger, but I need some input on a set of CATs for my better half's ... cough, cough... mini-van. She has a check engine light throwing a bad CAT code. Normally I wouldn't care too much but our wonderful Cali smog test is due and I need it for the registration. I checked around and everywhere I looked said due to CARB, it is a dealer only swap. Stealership wants $1,800 a piece for them to be replaced. I don't even think the car is worth much more than the $3600 it would be to replace them, maybe a little more but it has over 100,000 miles on her. Any ideas?