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Perrin 2.5" Un-resonated catback sound

Hi everyone,

I bought a Perrin 2.5" un-resonated catback and I'm wondering what the difference is between that and the resonated version. Apparently it's a big deal whether or not you're doing other pieces like headers but I'm just doing the catback. Anyone own a 2.5 un reso with all other exhaust components stock? Let me know how you liked it and whether or not there's any downsides to it.
Cheers

Quote:

Originally Posted by Just Drive (Post 2646477)

Resonated will have a smoother, deeper tone that (to me) sounds a bit more mature. I found this video:

[ame="https://www.youtube.com/watch?v=pwhCWSwi4mo"]Perrin 3" Cat-Back Resonated/ Non-Resonated Comparison For FR-S/BRZ - YouTube[/ame]