two engine air filters??????
Thread Starter
Pole Position
Joined: Jun 2003
Posts: 206
Likes: 0
From: Michigan
two engine air filters??????
just took the stock air intake for the first time today and besides the removable air filter inside, there is another air filter covering the top cover of the filter....what is the purpose of this ???? do we really need two??
i have a 09 is350 btw
i have a 09 is350 btw
Lexus Champion
Joined: Jan 2006
Posts: 3,763
Likes: 6
From: TX
what a joke....
tell me this was a joke...
please...please...
anyways, this is what 2 filters should look like.
Unfortunately, the IS does not have it.
What you are seeing is just a second layer of defense in case somebody forgets to put a filter back in or the primary filter has some catastrophic failure.
tell me this was a joke...
please...please...
anyways, this is what 2 filters should look like.
Unfortunately, the IS does not have it.
What you are seeing is just a second layer of defense in case somebody forgets to put a filter back in or the primary filter has some catastrophic failure.
what a joke....
tell me this was a joke...
please...please...
anyways, this is what 2 filters should look like.
Unfortunately, the IS does not have it.
What you are seeing is just a second layer of defense in case somebody forgets to put a filter back in or the primary filter has some catastrophic failure.
tell me this was a joke...
please...please...
anyways, this is what 2 filters should look like.
Unfortunately, the IS does not have it.
What you are seeing is just a second layer of defense in case somebody forgets to put a filter back in or the primary filter has some catastrophic failure.
And NO, it has nothing to do with secondary air filtration for the engine. It's there to capture hydrocarbons escaping from the intake manifold when the engine is off.
what a joke....
tell me this was a joke...
please...please...
anyways, this is what 2 filters should look like.
Unfortunately, the IS does not have it.
What you are seeing is just a second layer of defense in case somebody forgets to put a filter back in or the primary filter has some catastrophic failure.
tell me this was a joke...
please...please...
anyways, this is what 2 filters should look like.
Unfortunately, the IS does not have it.
What you are seeing is just a second layer of defense in case somebody forgets to put a filter back in or the primary filter has some catastrophic failure.
it's there to trap hydrocarbons. it's not for filtering dirt.
caymandiver lost power on an actual dyno. when he took out the charcoal filter.
https://www.clublexus.com/forums/3029977-post14.html
https://www.clublexus.com/forums/3031084-post15.html
Unbelievably true. Just to make sure it wasn't a fluke that day I swapped the charcoal filter in and out twice and got the same results of 1hp as lobux said.
Oh and on my last dyno session this past week I was curious and pulled the intake filter completely leaving the charcoal filter in place. Guess what? Yup I consistently lost power again by about 2hp. The stock setup with JoeZ pipe just works best. No need for drop in filters and no needing to pull the emissions charcoal filter from the airbox lid.
Oh and on my last dyno session this past week I was curious and pulled the intake filter completely leaving the charcoal filter in place. Guess what? Yup I consistently lost power again by about 2hp. The stock setup with JoeZ pipe just works best. No need for drop in filters and no needing to pull the emissions charcoal filter from the airbox lid.
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