I'm sure this question has already been asked but
I have a 97 expedition with a 5.4. Which muffler will be louder?
the flowmaster 40 delta series
http://flowmastermufflers.com/produc...oducts_id=3377
or the
magnaflow 5"x8" oval 14" Body Length
http://www.magnaflow.com/02product/s...ne=main&id=443
or the
magnaflow 4"x9" oval 14" Body Length
http://www.magnaflow.com/02product/s...ne=main&id=413
Thanks guys for any help