<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Posted by C:
We found that the whistle is from the supercharger not the Airaid intake. We installed a few of the Magnachargers and there is a increase in power when a free flowing filter like the Airaid is installed. The key to this is also installing a free flowing cat back system with the new intake. <HR></BLOCKQUOTE>Why does the whistle go away when the AiRaid is removed? I heard no whistle at all with the stock box. This occured on more than one truck I know of so I am genuinly curious. Is it becuause the stock box completely muffles the sound? Seems too loud for that
