I ran a Bassani catback system on my car for the longest time (2013 GT) with Krooks headers. It had a deeper tone to it. I also had people describe it as european sounding, still not sure what that means. It didn't sound anything like an import car. Had a nice deep tone, but did drone a little at low RPM's and to me it didn't have the muscle car sound.
I now run Borla S-Type axle back with a krooks O/R H-pipe, cat and res delete. Sounds much more like a muscle car now then it did with the Bassani. Now I set off the occasional car alarm when driving by.