Which muffler?

[mopar_1974]

Anyone know which muffler i will need for a duster? flowmaster 40 series. i need to know if i need the center/side inlet and outlet or the side/side. thanks

 

[abodyjoe]

offset in/center out

 

[dgc333]

This is the old system I had in my Barracuda. It's 2.5" pipes with offset in center out Flowmaster 50 series.