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Old 07-07-2013, 05:34 PM   #1
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stock air intake question

Just out of curiousity, I know its really cheap and maybe degrading to the vehicle, however what would happen if I cut the OEM filter box off right after the sensor and attached a K&N cone filter like a CAI would have? any benefits? or?
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Old 07-07-2013, 05:56 PM   #2
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First thought that comes to mind, that, without heat shielding or box, the engine would be taking in the heated air around the engine. Kinda defeating the whole purpose of a 'cold' air intake.
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Old 07-07-2013, 06:06 PM   #3
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There are a few people who have modified the stock intake to accept a cone filter. Some even have gone as far as building there own box to help insulate.
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Old 07-07-2013, 06:14 PM   #4
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K&N has a filter to fit the stock air box.

http://www.knfilters.com/search/prod...x?prod=33-2434

Another that Jac-Fab sells:
http://jacfab.com/products/camaro-pr...rop-in-filter/
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Old 07-07-2013, 06:31 PM   #5
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You would also still have the resonator boxes that would impede air and hurt performance I believe.
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Old 07-07-2013, 06:35 PM   #6
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K&N has a filter to fit the stock air box.

http://www.knfilters.com/search/prod...x?prod=33-2434
Bought it for $43.83 from Amazon.
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Old 07-07-2013, 06:40 PM   #7
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You would also still have the resonator boxes that would impede air and hurt performance I believe.
I was at Watkins Glen last weekend and got a good look at the Stevenson and CKS Autosport GS Camaros that run in the Continental Tires Series. When they opened the hood for me to get a look, all three cars were running the stock airbox and inlet tube to the throttle body including the resonator boxes. I know there's a lot of hype about adding a cold air intake, but I'm looking at this as save your money. If it's good enough for the GS Camaros and you're not concerned about the cooler appearance of an aftermarket CAI stick with the stock airbox and get a permanent element filter to put in the stock box.
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Old 07-07-2013, 06:56 PM   #8
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Quote:
Originally Posted by traildevil View Post
Just out of curiousity, I know its really cheap and maybe degrading to the vehicle, however what would happen if I cut the OEM filter box off right after the sensor and attached a K&N cone filter like a CAI would have? any benefits? or?
You would be sucking in a lot of hot air from the engine bay. I am going to go out on a limb and say that you would lose power compared to stock.

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I was at Watkins Glen last weekend and got a good look at the Stevenson and CKS Autosport GS Camaros that run in the Continental Tires Series. When they opened the hood for me to get a look, all three cars were running the stock airbox and inlet tube to the throttle body including the resonator boxes. I know there's a lot of hype about adding a cold air intake, but I'm looking at this as save your money. If it's good enough for the GS Camaros and you're not concerned about the cooler appearance of an aftermarket CAI stick with the stock airbox and get a permanent element filter to put in the stock box.
We tend to think of race cars as running whatever is the latest and greatest in performance, and in many respects this is true, but all racing series have certain regulations that must be following. Induction is often one of the most strictly regulated parts on the engine in order to limit how much power certain vehicles make. I wouldn't draw to hasty of a conclusion without looking through the regs first. I can promise you that they aren't running the stock tube and air box because they couldn't find something better.
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Old 07-07-2013, 07:05 PM   #9
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Does anyone make a direct replacement silicone hose to replace the stock plastic tube?
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Old 07-07-2013, 07:10 PM   #10
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If to do something right like a roto fab or CAI was $1000 and required me to find a tech and pay him 300 to install it, I might be cobbling on a conical or something too. But the CAI is like $400 and installs with hand tools in an hour by anyone. When I spend 40K or so on a car, I can find 1% of that number to make the engine compartment work and look good:
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Old 07-08-2013, 09:08 AM   #11
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Originally Posted by td195f View Post
I was at Watkins Glen last weekend and got a good look at the Stevenson and CKS Autosport GS Camaros that run in the Continental Tires Series. When they opened the hood for me to get a look, all three cars were running the stock airbox and inlet tube to the throttle body including the resonator boxes. I know there's a lot of hype about adding a cold air intake, but I'm looking at this as save your money. If it's good enough for the GS Camaros and you're not concerned about the cooler appearance of an aftermarket CAI stick with the stock airbox and get a permanent element filter to put in the stock box.
I'll bet that they are not running the stock intake because they want to, I'll bet that they have to. Dyno tests have proven that a CAI is worth about 15 horsepower. Most racers would kill for 15 horsepower.
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Old 07-08-2013, 09:50 AM   #12
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Quote:
Originally Posted by Comrando View Post
K&N has a filter to fit the stock air box.

http://www.knfilters.com/search/prod...x?prod=33-2434

Another that Jac-Fab sells:
http://jacfab.com/products/camaro-pr...rop-in-filter/
That's what I was going to say

Quote:
Originally Posted by td195f View Post
I was at Watkins Glen last weekend...
stock airbox...

If it's good enough for the GS Camaros and you're not concerned about the cooler appearance of an aftermarket CAI stick with the stock airbox and get a permanent element filter to put in the stock box.
I don't know about other motors, but there are repeated dyno pulls showing the difference cold air intake makes on the ZL1.
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Old 07-08-2013, 11:57 AM   #13
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If to do something right like a roto fab or CAI was $1000 and required me to find a tech and pay him 300 to install it, I might be cobbling on a conical or something too. But the CAI is like $400 and installs with hand tools in an hour by anyone. When I spend 40K or so on a car, I can find 1% of that number to make the engine compartment work and look good:
This! Why spend your hard-earned cash on a great car, only to hack and cut up something to try and save some money? Buy a cold air intake and don't look back.
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Old 07-08-2013, 12:06 PM   #14
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You can find a used K&N CAI for cheap. Also, I know my local pep boys sells the K&N Cold air intake for the SS and Its pretty cheap.

Don't fabricate your stock box. It will look ridiculous. Save up and buy a used real CAI.

You are even better off buying a cheap one like this off e-bay http://www.ebay.com/itm/4-RED-2010-2...78c0f3&vxp=mtr
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Old 07-08-2013, 12:23 PM   #15
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Lookup the member bad70supreme. I think that's correct. He made his own cold air Intake from a stock one.
Or look at this thread by him
http://www.camaro5.com/forums/showthread.php?t=157335

I'm also working on my own. There's a thread in the llt bolt on section
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Old 07-08-2013, 01:19 PM   #16
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If to do something right like a roto fab or CAI was $1000 and required me to find a tech and pay him 300 to install it, I might be cobbling on a conical or something too. But the CAI is like $400 and installs with hand tools in an hour by anyone. When I spend 40K or so on a car, I can find 1% of that number to make the engine compartment work and look good:
i applaud your common sense, sir!
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Old 07-08-2013, 06:59 PM   #17
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Originally Posted by Comrando View Post
K&N has a filter to fit the stock air box.

http://www.knfilters.com/search/prod...x?prod=33-2434

Another that Jac-Fab sells:
http://jacfab.com/products/camaro-pr...rop-in-filter/
But it doesn't help one bit. Except to drain your wallet
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Old 07-08-2013, 08:34 PM   #18
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But it doesn't help one bit. Except to drain your wallet
Not true. The K&N filters are less restrictive so more air passes through. Also, as opposed to stock filters, K&N direct replacement filters are washable so instead of having to keep purchasing new air filters you just re-use them. In the long run, it will save you money.

It all depends on preference.
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Old 07-08-2013, 08:50 PM   #19
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I am a big fan of OEM. The engineers whom designed it knew what they were doing, or they would have added one, at extra cost for us of course.

For the cost of a CAI for a non-racer like me, just doesn't make sense. You are getting cold air intake (CAI) relatively, compared to the heat of the engine surrounding it.

Not allowed to talk about the other after-market thingy as I am on my final warning for my humble opinion that is brilliant but not appreciated.

Peace out.
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Old 07-08-2013, 08:57 PM   #20
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I am a big fan of OEM. The engineers whom designed it knew what they were doing, or they would have added one, at extra cost for us of course.

For the cost of a CAI for a non-racer like me, just doesn't make sense. You are getting cold air intake (CAI) relatively, compared to the heat of the engine surrounding it.

Not allowed to talk about the other after-market thingy as I am on my final warning for my humble opinion that is brilliant but not appreciated.

Peace out.
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Old 07-08-2013, 09:00 PM   #21
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Not true. The K&N filters are less restrictive so more air passes through. Also, as opposed to stock filters, K&N direct replacement filters are washable so instead of having to keep purchasing new air filters you just re-use them. In the long run, it will save you money.

It all depends on preference.
Your second point (money savings) is correct.

Your first point has been proven false. The drop-in K&N filter does not increase power. Often times the OEM airbox itself is a big part of the restriction of airflow. Have you seen the snorkel that comes off of that thing?
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Old 07-09-2013, 04:46 PM   #22
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Your second point (money savings) is correct.

Your first point has been proven false. The drop-in K&N filter does not increase power. Often times the OEM airbox itself is a big part of the restriction of airflow. Have you seen the snorkel that comes off of that thing?
The snorkel actually helps the stock airbox... It flows worse if you remove it.
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Old 07-09-2013, 05:37 PM   #23
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JMO, but there were 3 things why I spent the money and bought a CAI and not in any particular order. 1. Increase in MPG. Granted it may have only been a tiny increase but every little bit helps especially when just 2 months ago we were well over $4 per gallon. 2. Performance. Again very small increase but again every little bit is appreciated. 3. Looks. This is probably one of the more important factors about adding this as to me it now looks a lot better under the hood. I bought the Injen CAI with the polished tube and it looks nice under the hood. I was going to settle for just adding the K&N filter to the air box but why not make it look cleaner under the hood.

Dean.
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Old 07-09-2013, 09:31 PM   #24
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The snorkel actually helps the stock airbox... It flows worse if you remove it.
Why would that be? How can channeling the air through that narrow tube help?

I'm just curious, as when I pulled my stock airbox out to clean a bunch of crap out of the bottom, I kind of laughed when I saw that appendage coming off of it.
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Old 07-09-2013, 10:06 PM   #25
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Why would that be? How can channeling the air through that narrow tube help?

I'm just curious, as when I pulled my stock airbox out to clean a bunch of crap out of the bottom, I kind of laughed when I saw that appendage coming off of it.
The radiused entry on the end helps smooth incoming airflow, and increases velocity. The narrow tube with the radiused end, is better than a narrow hole with a flat end.



Take the test results with a grain of salt because they were not tested through a head/intake/throttle body. Just tested with the stock airbox, and stock intake tube. You're better off leaving the snorkel than you are removing it.
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