I replaced the stock muffler with a premier tail muffler, and the volume and sound quality were noticeably better.
A gentle bass tone resonates up to around 3000 rpm, and gradually shifts to higher frequencies from 4000 rpm onwards.
I've heard that the volume is low, but you can now clearly hear good sound even from inside the car with the windows closed.
Perhaps due to this, it feels like the low-speed torque has increased, making it easier to drive around town.
It looks more impressive and I am very satisfied.

●Totakke, Tokyo (RX-8/SE)