all WAIs sound like that. even my Jim Wolf. you can get rid of the sound by turning the idle adjustment screw. I got rid of the sound completely. Unfortunately, I had to go back to that terrible sound because I dropped the idle so low, my car would die coming to stops.
Thats very nice of Injen to do that. How much does that cost?
And if I buy the extension, can I still use the heat shield, better yet, will the heat shield still do its job once the filter is moved down there?