I recently bought a used 2008 350z that came with a catback from the previous owner, it sounded amazing but unfortunately, I got pulled over and was asked to remove it, so I'm looking for a catback that won't be too loud but a bit louder than stock and still sound nice. Any suggestions? (I don't know which catback the previous owner had installed)

 

Invidia Gemini or fujitsubo, if money isn't an issue the HKS twin with the transverse mufflers is quiet as well since it's JASMA approved, that's the one I have.