I personally like the k&n drop in, I do see improvements in hp (very slightly) but I do also notice a drop in mpg. Imo, I think you should. Don't over oil it or it can drip onto your MAF sensor but other than that, I say its a great upgrade in saving money versus buying a new air filter every 50k or so miles. My filter seems to catch A LOT of debris and none of which I've seen any further in than the filter itself.
Originally Posted by The HACK
I'm going to use a very simple analogy, I hope you'll understand.
Driving is like having sex.
It really is. You can read up all you want about how to please a woman, you can look at all the diagrams in the world, but just like the clitoris, you won't know what the hell an apex is before you actually find it.