Creates a Vortex effect and increases the Horse Power, at least that is what the J.C. Whitney Catalog says. Can't wait to give it a try. The custom alternator cover was from Martha Stewart.
The 'Boys' at the "GM- DYI Forum" have come up with a ingenious work-a-round for the cost conscience guys needing a Cold Air Induction for their ride. It has a "P" trap option to collect moisture from entering the intake.