Quote Originally Posted by hahnmgh63 View Post
I used R1 diverters valves on my RS6 years ago and they made an obnoxious honking sound at part throttle. I ended up putting them on my Turbo Cayenne and they were nice and quiet. Maybe they've changed/updated the design.
Interesting...soon to find out...that is, if the car starts for me in the next day or so...