[Flakbadger]

No offense but replacing your air filter with a brillo or scotch-brite pad is a terrible idea. Small bits of dust are going to get into your cylinders and scratch the hell out of them. To be 100% honest, the air filter is not going to net you that much of an improvement. I use the crappy disposable paper ones 'cause they're cheap and effective. Or like Sean.Heihn said, get a K&N and be done with it. You only have to oil them once in awhile.