I have a Remus too and it probably is the quietest performance cat back out there. The Supersprint that was on the car previously produced more off-throttle burble and made better hp from midrange on up. The Supersprint was straight thru (I cut it open), but the Remus isn't (flashlight inspection).
If you want more sound, try aftermarket cats. Apparently, the OEM cats are very quiet. I'm going to do it eventually since the OBD-I Y design is somewhat restrictive.