The Bassani is the loudest, Flowmasters next then the Magnaflows is just a bit louder than the stock ones.
I know. I have already had a pair of 2 1/4" flows with stock tailpipes then
Magnaflow 2 1/2" catback system.
Then I ripped out the Magnaflows and put 2 1/2" Flowmasters in with the Maganflow tailpipes.
Whew!
The Magnaflows had the least drone in the interior at 2000 rpm. A very mellow tone at the tailpipe.
But I prefer the raspy, crackle, the Flowmasters offer.
Oh, the 2 1/4" Flowmasters with the stock tailpipes had the worst drone.
Drive you crazy at 70 mph.
Dennis