K & N filters

One thing I haven't't seen, is any proof that allowing more "dirt" past the air filter causes any wear or damage to the engine. It may seem like something that must cause problems, but without proof that it does all the tests showing the amount of dirt allowed through mean nothing.

More air flow does equate to more power produced, generally speaking. I have plenty of personal evidence for that. I know that to be true.

All that said, I have never purchased a K&N air filter.