Originally Posted by HP Autowerks
Had the Borla Cat-back on our project 335i, no drone so far with ~5000 miles on the system!
I thought most people on this board like it loud with lots of droning?
Zero drone on my car with the Borla Catback... I'd post the videos I just made but unfortunalty there are noe drivers avail for my old ass video camera to work with my Macbook pro.....