Quote Originally Posted by 87IROCZOWNER69 View Post
Some people have talked about blocking those "silencer holes" in previous threads, however no one has come to conclusion on the best way to do so really. All I have heard is to not use JB Weld or anything else that could break up. Those who have said it is very noticeable sound difference and you can even hear the supercharger whistling on idle.
Don't waste your time with it. Doesn't make much of a difference and puts you at risk of tossing something down the intake.