Completely agree!The Corsa Sport is a deeper tone than the Extremes and more of any even tone .. less rasp... I tried the Borla Sport Cat Back.. really loved the sound, tone around town, but the drone at 2k and inability to quiet the exhaust on the hwy drove me crazy. Was really sad to get rid of them, but really like the balance of the sports... they won't scare anyone, but they have just enough old school with exotic new age sound that is appealing. This is a new euro body design on the S550's... the more I thought about it the old school deep (my son calls it pickup truck rumble) sound just doesn't fit on the new body style - that is only my opinion though....