After 4 years and 5200 miles made first modification to K078. Found exhaust on Ebay at great price 18 months ago and finally pulled the trigger thanks to my great GT buddy @wmjim and his mechanical expertise. Fairly easy install but something I would not have attempted on my own. Significant weight difference and sounds slightly louder and most of you know the sound difference from stock. Also, thanks to @thegtguy for advice on the race ramps and @italianjoe for a Sunday text with an answer on backup camera!