Air filter,primary and secondary

[eric81]

Carbo trap keeps stuff from going into the engine that doesn't belong, and stuff from leaving the engine the wrong way. Pointless, IMO. I took mine out right away, and had no problems. Take yours out, and try blowing through it. It's kinda hard. Now, imagine your engine going through that same strain. The less work the engine does to create power, the more power it has to put to the ground.

[RedRide]

Originally Posted by eric81

Carbo trap keeps stuff from going into the engine that doesn't belong, and stuff from leaving the engine the wrong way. Pointless, IMO. I took mine out right away, and had no problems. Take yours out, and try blowing through it. It's kinda hard. Now, imagine your engine going through that same strain. The less work the engine does to create power, the more power it has to put to the ground.

Isn't that what the "main" air filter is for? If the air filter is filtering as it's designed to do, what is the purpose of the secondary?

I agree that it limits air flow. Perhaps that's precisely what it's for?
Maby it's part of toyta's "tuning" to limit performance to increase MPG?

[b_hickman11]

Originally Posted by eric81

Carbo trap keeps stuff from going into the engine that doesn't belong, and stuff from leaving the engine the wrong way. Pointless, IMO. I took mine out right away, and had no problems. Take yours out, and try blowing through it. It's kinda hard. Now, imagine your engine going through that same strain. The less work the engine does to create power, the more power it has to put to the ground.

More Power=Lower MPG

[RedRide]

Originally Posted by b_hickman11

More Power=Lower MPG

Exactly my point in a previous post.
I suspect its only purpose is to increase MPG.