Muffler deletes sound alright, just WOT towards the top end it's kinda raspy but tinny. I can't say for a sedan, however on my coupe it was drone city. It sounded nice however wayyy too much drone. I've heard that the sedans weren't that bad though. I didn't have mine on my coupe for long, quickly got rid of it and got a TopSpeed pro1. Personally, I'd just put that money aside and get a proper brand.
2015 Infiniti Q50s Graphite Shadow
2013 Nissan Altima
2008 Infiniti G37s [SOLD]
2016 Toyota Tacoma TRD Sport [SOLD quickly]
2006 Nissan Maxima SE [SOLD]
1996 Nissan Maxima SE [SOLD]
1995 Nissan Maxima GXE [SOLD]