I want a bit more sound
As Noobz347 suggested cut outs, but not legal in all areas.
Safe bet would be to leave it the way it is and just not have it louder .
I recommend building more motor and allowing the exhaust note to work itself out.
Or drill death tone holes in pipe before muffler, LOL
With stock engine, your exhaust is working fine
I think your current mufflers are upside down with the heat shields facing down?
Maybe if your sound wasn't upside down?..............just kidding