DO NOT BUY an airaid system for your Sequoia. I spent about $300 a few years back for my system. The box says "smog legal in 50 States". But, when I went to get my Sequoia smogged today, I was told that I needed an EO number. I was told that I could call Airaid and they would give me a number and then send me a sticker for later. I called -twice- and was told that the Airaid was NOT LEGAL in California, and they could not give me a number. I happened to still have the box, so I called back and read them the part number and told them that the box plainly states "smog legal in 50 States". They told me that that was "JUST A GENERIC BOX" and that didn't mean anything. I asked what I could do. and was told to put on the factory filter.
Smug SOBs already had their money.
Stay with one of the other brands - Airaid doesn't care about customers!!!!

Joebeewan, Roseville CA

thanks for the heads up I was looking at buying one of them.