whats up guys, my friend recently put an exhaust on his evo, and with it bought a ebay cat delete, no brand but makes his car much louder and deeper...i have an 01 civic ex and was wondering if i were to buy a one, would the changes be dramatic in the sound quality factor? and what brands are reccommended? i currently have an APEXi n1 catback on now...and info is helpful - thanks !