For everyone's info, Richard Porter recently installed the Waldron-made Arvinode concours exhaust system on my early '65 K fastback. Interesting that previous posts here suggested the Arvinode was "quieter". My car sounds "good and loud", especially wound thru the gears! I would recommend the Arvinode pipes to anyone whose car fits the timeline in which they were used. They were installed about six months ago -- I still visit the garage a couple times a week just to start it and listen when I don't have time or weather won't let me drive it. Sounds like the hot rods that snapped my young head around to look when I was 3-4 years old. charlie
I am unclear as to who thought that the early Arvinode is quiet. Ford had so many noise complaints about the early Arvinode that Ford offered mufflers to cut down on the noise. The later Arvinode with actual resonators and mufflers that began around March 1965 is much quitter without any rapping. A friend of mine has the Waldron Arvinode of his early 65 Konvertible ,and yes it is loud, but it sounds great to my old school ears.
-Fred-