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well today i got my intake, so i installed it.it was really easy and this was my first time. however, when i got the intake, it didnt come with a breather hose, so i thought i could use the stock one..Well the stock one was half an inch short so i clamped it at the ends so it could hold till tom..
my question is:

1. what is the purpose of this breather hose and what will be the consequences if i drove without it...i just want to know..thanks.

 
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That's a good question man, I was wondering that myself. Anyone?

 
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If you leave the hose off dirt can get in the head and intake. The crank case outlet allows the cylinder head to breath, I personally used a crank case breather element, it's a small filter on the cyl. head side, and pluged the intake side.

 
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if you're talking about the hose that goes into the valve cover, that is the PCV fresh air inlet hose. it's purpose is the reduce hydrocarbon emissions by scavenging the crankcase vapors. it circulates fresh air from the air intake duct into the crankcase where it mixes with the blow-by gases before being drawn iby intake manifold vacuum through a pcv valve to the intake manifold.

if you don't mind hydrocabons and a cat that wears out faster, just put a small air filter over the intake piping's outlet.

 
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thanks..so it wouldnt be doin like alot of harm if i drove it around just a lill..imma go tom and get a bigger hose, but i was buggin out cuz this one was too short.

 
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just put a tiny filter on the end of your hose. thats what I did. then plug off the intake nipple or just go get some hose at NAPA and connect it up

 
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you can use heater hose. I think its 5/8" hose that fits it right. Just clamp it on.
Any autoparts store has it.

 
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ok sorry for a little thread jacking here but would any auto part store carry those crank case breather filters? like can i get the filter from pepboys or NAPA?

 
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yeah, ive seen them at napa and schucks before

 
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Just go buy some hose like boilermaker said. There is no point to put the breather filter on, your not going to feel a diff and its a good way to ruin a cat faster.

 
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i thought hot air comes out of that breather and goes back into throttle body, i disconnected it and i felt hot air coming from it i left it off and the car felt better, i was lookinf for a filter to fit it but its kinda kit the regular breather filters wont fit, should i reconnected back the hose to it will it damagae anything or can i leave it off its been off for about 40,000 miles now and i havent had a problem

 
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The CCB I bought had a rubber piece that went into the actual filter cone, i just pulled that rubber piece off, since it only has a small opening, and stuck the huge hose that came with my CAI directly in the filter, then plugged the TB side.

I hope that helps...

 
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see evryone here uses a breather the negitive fall from that is that the valve cover shoots out oil cause it happen to me so I invested in getting a NRG oil cathch can from a local race store and that my friend work better that the breather fillter

 
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ok kool how muhc was the catch can and where can i get it ? what does it do ?