Sorry if this has been asked or if I'm just being an idiot

But I was checking out some exhaust at the local dealership and they had a bolton exhaust system for the 98-2001 Integra that was a full catback and only 400 bucks. It wasn't namebrand but when compared to the GReddy and Comptechs it looked near identical. Now my question is, would it still work as good or atleast close because there really dosen't seem to be any physical differences. Thanks for all replies in advance