I had a straight through dual tip dynomax muffler hooked up to my 3'' turboback on my 91 tsi. It was very quiet, and looked very very stock with just two stock looking tips on the end. It was only loud when under WOT because of the open wastegate dump. I had been previously pulled over on numerous occasions with the apexi n1 muffler on, but after switching to the dynomax, I encountered no more trouble with police over the noise level of my exhaust. I have no experience with the vibrant but I give the dynomax a thumbs up