Yeah - forgot you have the Dart, my car is a '63 Fury. The 50's are 17" case and the hemi's are 20" so had the car on a lift to to see about fitting and looks to be an ok insert. I couldn't go with resonators, no room with the big pipes, but that's a nice option if they can be fitted. I'm not dumping my system either so have to install reducers - hemi mufflers have 2.5" inlet and 2.25" outlet. Will see...Not gonna get those big Hemi cans under the Dart. I also don't want to change the pipes, or hangers, so stuck with similar dimensions to what's under the car. 2.5" in and out.
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