What is it?
#2
Advocate of getting the ban button used on him...
Joined: Aug 2005
Posts: 5,081
Likes: 8
From: Live Oak Texas
If you do a search for silencer ring you will find a lot of info. Basicly it is a ring in the inlet of the turbo to keep the turbo whistle or whine quiet. Removing it only makes the whistle louder but no performance gains.