I was in one of my local hardware/auto parts stores the other day when I noticed that they were now stocking the K & N filter for my car (HP-1010). I picked it up and to my surprise there was a silicone ADBV staring me in the face. Iguess it might be worth the extra $$$ for these filters now? I'm running a Napa Gold on my car now and the K & N on the wife's car. Nice filter but for a few $$$ less the Napa/Wix filter is hard to beat. Just my .02 cents.