Not really selling anything, just a tip for people wanting to buy some new K&N Filters. I don't know if this belongs here but don't know where else to put it.
Advance Auto has coupons that comes up VERY regularly like this one:
Advance Auto Parts Coupons, Promo Codes & Deals 2014 | Slickdeals
They carry K&N filters for our car. I used the $50 off $125 coupon. I had to make sure I added an extra $5 with some random accessory.
BOTTOM LINE: I got NEW K&N filters for $70 with FREE SHIPPING