Review on Injen Technology IS1321BLK Intake System by Marcus Hardin

Exactly what I expected; A well designed device that looks great under the hood and greatly increases engine noise. Those who are tired of the increased engine noise in the cabin should think about it. It has a surprisingly deep, raspy sound under acceleration (including low speeds), a sporty growl at full throttle, and complete silence at cruising speed (and that's without any changes to the exhaust system). I noticed a slight increase in pedal response and a very slight increase in fuel economy (although my "hard riding" usually excludes fuel economy from my primary goals). In general I am very happy.