Originally Posted by HEMI450HP
I would go with the 18" and leave the resonators on there. This will give you options in case you think it is too quiet with the resonators in place. If you go with the 24" and it is too quiet, then you are stuck having to buy another muffler.
i have the mufflex 24" dual out witch uses the magnaflow 24" and also i had my rear resonators remove
at idle its more loud that original, you can easylly hear the difference,
will driving its even more noticible
and WOT its has loud sound.