Ok, I'll chime in. I put the Heffner system on my car and am very happy with it. For normal driving it is not obnoxious, just throaty sounding. I don't get the dreaded droaning sound around town. Best thing about the exaust is when you want to get on the car it sounds spectacular. Best compliment I ever got was leaving from Dupont cars and coffee one Saturday, I passed a new aquaintance in a beautiful 67 GT500 Shelby Mustang. He had both windows down. I gave him a pretty high RPM pass, and when we stopped shortly later at his shop he had this to say..."When you passed me in that GT, it sounded like the gates of hell had opened up and all the demons came out. It was the best sounding car I've ever heard". Funny thing was, in the car it was not crazy loud, just sounded impressive. Guess it sounds different from behind :lol Don't think you'd be dissapointed with this system.
Rick
Rick