Muffler opinion

Dual 3s are loud no matter what you put on them.But that style is the loudest of all
But if your teener is stockish, meaning low compression, you can get away with a lot.

For instance; if you run dual 3s from the headers to the inlets, with a crossover in there(H is fine), and then neck the outlets down to run a pair of 2s out to the back, with little turn downs; Ima thinking that might be just right. Stay off the throttle in your own neighborhood.

If you really want quiet, you almost have to have reverse flows.