I just changed the exhaust on the Dart. Went from a 2 1/2 inch with an H pipe and Flowmasters to 3 inch with an X pipe and DynoMax Ultraflows. Both dumped in front of the axle.
Picked up 2 tenths and 2 mph but the exhaust note is somewhat quieter and the bass is gone. I miss the bass sound. I guess this is the drone being talked about.
But this is a bracket car. It would probably drive me deaf if it were a car I drove alot.