I really enjoyed it, high light of my day going through the tunel with my new exhuast its only 2 and 1/4 inch cat back system with four inch tip but on an auto r34 non turbo i think mine was the loudest there, i floored it throught the tunnel on the way down and on the way back lol. Great Fun pretty descent turn out 2. Why didnt many if any SAU members show up, i would have been so proud to stick with the SAU group, kinda disappointed in SAU members to be honest with u