Tuned, thanks for the tip at AJ-USA!. I bought six K&N filters for less than 50 bucks. Been using K&N for years now and feel they are superior to OEM.

alsalih, nice detailed write up and great pics! Thank you for sharing this with us.

And TunedRX300, thanks for the AJ-USA tip. Good stuff.

Here is what the cartridge filter looks like on a IS350, 2006 model
Can you tell which one just came out of the car?
Genuine Toyota, made in Thailand. probably for .39 cents. Cost $5 dollars plus.