Opinions on K&N Air Filters

I'm looking into getting a K&N Air Filter for my 2005 Tacoma. Was thinking about the one below. Any opinions?

 

waste of money. I bought one and it ended up costing me gas milege! I stomped the gas all the time so I could hear it! haha

but for real though, the only gain you will get is sound. If you want performance I say save up and get headers and or a URD MAF CAL.

if you search around the site you will find dozens of threads talking about this

 

More dirt will pass through it than the stock which will equate to shorter engine life. I also think the filter oil contributes to fouling MAF sensors faster.