[cl998]

I had a K&N on my 03 and didnt notice much other than the noise, maybe a little more torque. I think because of the better sound maybe I drove it harder and got 10mpg average. I just got a 05 all stock, I can definately notice not having the K&N, it doesnt have that 2nd gear power and sound. On the other hand I am getting 12-13mpg.

I put mine on in about 30-45 minutes and I am by no means a gearhead. Every couple of months I did have to tighten it up a little.