Silent mode is similar to OEM. You can hear *buuu*, but it's not annoying during drive with 140 kph (87mph). Still you can normal talk and drive 1500 km non-stop. :)
Louder mode is funny. This isn't that loud, like most cars with sport exhaust, but you hear the difference. Inside car is still enough quiet, but with good *grrr*.

I changed only rear mufflers, both catalysts and middle muffler are on the same place.

Exhaust: https://rm-motors.com/en/with-volume-...