i just installed the K/N kit, looks cool under the hood, however I am just waiting on the custom poiping I have made so it could be painted to match the color of the car, it will break up some all that black piping under the hood.

All in all the K/N does give the car a throatier sound when accelerating. I was impressed with the sound alone, I paid $321 inclu taxes and it took less than 25mins to install, was very easy,