Quote:
Originally Posted by hcsberlin
...and just to mention, I never said in my DIY that K&N filters increase horse power. It's just nice not to have to replace them like paper filters. 
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My concern isn't even with the false power claims...its with the horrible filtration. Oil analysis on K&N equipped cars consistently have high silica readings. Silica = sand/dirt. It wrecks the MAF, it wrecks the turbo and its hard on the engine.
Stock filter change interval can often be 40k miles. I'd rather throw a cheap and effective filter in there every 40k than deal with the hassle of cleaning and re-oiling the K&N and paying through the nose for their recharge kits.
Besides, seeing sunlight through your air filter is not a good thing:
