I had TRD/K&N (exact same thing) installed for about a year and I loved it
seemed to get the gas milage up by a bit and made the car run smoother
fyi - TRD air filters are built by K&N
Air filter compare can be found at...
https://celicahobby.com/gal3/albums/video/Air_filters.aviTHANKS RL!
The video shows how much air each filter lets pass through... the higher the ball, the more air that gets passed...
The video first shows how a high quality filter lets more air pass through, while containing the bad particles (this is a good thing)
Then it shows your standard filter and last it shows another regular paper filter... notice how it chokes the air from passing through
Last edited by isaac; Jun 30, 2003 10:27am.