I have the Borla S cat back and it sounds sweet. I don't like drone and it has minimal. Even at hi-way speeds i can have a conversation with the gf or be on the phone with no problems. I have Kooks long tubes to put on it and i think it will sound amazing. Just not ready to install them yet because i don't want to do a tune and void my warranty. So since i'm biased i give my exhaust a 10
