Hey WG, I wouldn't sweat it. Go ahead with that catback. I think you just ran into the wrong cop on the wrong day. I say this because in 7 years I've been pulled over a few times in My 3000GT and once in my VX which both have 20% tint that you can barely see through and not a word was said about it. I've seen (and heard) many a ricer with cops in the same general area and have never seen them pulled over for it either.