I wanted to improve the look and sound of my 2010 v6 daily driver mustang. I didnt want the "coffee can" tinny sound that a lot of aftermarket units make I also didnt want my car to wake the neighbors. This product gave me a nice deep throaty rumble at idle and very little "drone" sound at 2K RPM. I did combine this with a BBK Cold Air Induction System. I picked that out because it did not require a Tuner and was an easy do it your self install. Special Note: You have to get a GT valance for a 2010 Mustang. The kit does supply a template to cut the driver's side hole on the stock valance, but I don't recommend it. The hardest part of this kit install is replacing the valance. My mechanic who did the install paid me a sincere compliment and said it "really does give the car a V8 sound".