I'm a 34yr old guy with 1 loud car already and wanted something more aligned with what you describe. I'm very happy with my Greddy Ti-C - with the silencers IN. It comes with the silencers in the mufflers and like that it sounds great. No drone at any RPM, not overly loud in the cabin, but sounds good outside. Sounds great over 3500 RPMs at full throttle. During normal driving you can hold a conversation without raising your voice.
I tried it without the silencers out for about 2 weeks but it was too loud for my taste, I knew I couldn't drive it for longer than 45 minutes without going crazy so put them back in and have been loving it ever sense.
I also think the fitment is perfect. The mufflers don't stick out too far and aren't overly showy/big - just big enough for people to notice it's not stock. It doesn't make as much power as some of the others, but the build quality, fitment, look and sound make up for it to me. I'm very happy with my decision.
You can see some pics of it here:
Nissan 370Z Forum - TXSpeedDemon's Album: Greddy Turbo Ti-C Exhaust