I took my truck into the dealer this weekend for a 15k mile service. As usual, they tried to sell me on replacing my air filters – a charge of $70 at Folsom Lake Toyota. I proceeded to tell them to take a hike and went to pick up my truck. I happened to be out at Walmart with Kari and decided to pick up some air filters for the house and got a replacement filter for under the hood too (for $15). They didn’t have the cabin filter available, so I came home to Google where I could find that. I was amazed to see a generic cabin filter going for $30-40!
So I hopped on t4r.org and did a little research. Thanks to that trusty site, I was able to make my own cabin filter from a Filtrete home air filter at a fraction of the cost. The filtrete filters are $8, and I can make about 4 replacement cabin filters. Not bad compared to $40 at Napa Auto Parts.
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- The stock cabin air filter
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- The Filtrete filter (20x24x1)
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- Relative size of the cabin filter
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- The new homemade filter
soccer fanatic, techie, gadget lover, intel consumer digital marketing for my day job. excited about smart TV's and mobile computing.
Mike's Blog 
You’re like MacGyver
But with fewer explosions.