and a related article that deals with chevy ,but is good info as well.
listed here a muffler shootout test done by C@%CR#*^, they show the best bang for the buck, and show the db's
The Mufflers
MAKE MODEL Part No. COST
SUMMIT Turbo 630125 $14.75
THRUSH Magnum Glasspack 24214 $16.50...