Originally Posted by akamomo
I personally didn't find it to make much of a difference. Maybe I'm crazy.
I didn't feel like having to unclip wire and deal with that if, for instance, my car fails and gets towed in from somewhere. It just wasn't worth dealing with in my mind for the 2% sound increase I might have heard.
Not to knock the mod, its easy enough and makes sense. I just changed my mind after having it that way for a couple of days.
I hear you, makes sense. These days BMW does not play with the warranty. They see mods and aftermarket they're quick to void. That's why I chose the BMW exhaust no warranty issues.