Sorry...
I thought you wanted to know if the K&N was actually doing something for you.
I've offered a suggestion to determine exactly what it is doing on the flip side of the coin when it is letting all that air into your engine. Oil analysis will tell you precisely what's going on.
Silicon comes from two places when it's in your oil. I'm talking SILICON...like SAND, not that chit in your girlfriends titties. One place it comes from is all the sh!t left behind when your engine is manufactured and the reason you do an oil change at 600 miles when new. Second and most often is dirt being sucked into your engine through these hi-perf air filters.
Take your pick....performance gains that you have to ask an entire SV Forum whether or not you actually experienced or not or pretty much gauranteed premature engine wear? With excessive wear, you will likely see a higher rate of lead and iron contaminant in your oil sample then universal averages. That's the good stuff coming off of your crank bearings, cylinder, and piston rings as they wear down at a faster rate than if you actually fed your bike clean air.
An oil analysis will tell you all that but you need to know what to compare it to, that's why I suggest an immediate oil sample. It's $22 and worth 100 times that in it's valuable diagnosis.
