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Old 03-01-2009, 09:01 AM   #1
domano 68
 
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GM performance part Air-box upgrade thoughts

Just wanted to get some thoughts on the $470 upgrade to the GMPP air-box upgrade. I'd like to get it but the price is very high and I am wondering how much performace, additional mileage, etc it would add. TIA!
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Old 03-01-2009, 04:32 PM   #2
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That was discussed pretty extensively in this thread.

http://www.camaro5.com/forums/showthread.php?t=11766
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Old 03-01-2009, 07:55 PM   #3
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Those are the same threads.

Also stock air boxes are usually a cold air intake, they just have a ton of restrictions and a standard filter.
It's all a matter of removing those restrictions and putting in a better filter.
However I think the cold air intake from GM looks pretty darn good when compared to the stock setup.

Sometimes I've seen things put in the way of the air pipes that when removed will increase air flow.
Such as the sound deadener sheet put right in front of the air box on certain GM trucks.
I once pulled one out of the filter and probably doubled the gas mileage.
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Old 03-01-2009, 08:49 PM   #4
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Quote:
Originally Posted by Parker View Post
Those are the same threads.

Also stock air boxes are usually a cold air intake, they just have a ton of restrictions and a standard filter.
It's all a matter of removing those restrictions and putting in a better filter.
However I think the cold air intake from GM looks pretty darn good when compared to the stock setup.

Sometimes I've seen things put in the way of the air pipes that when removed will increase air flow.
Such as the sound deadener sheet put right in front of the air box on certain GM trucks.
I once pulled one out of the filter and probably doubled the gas mileage.

So if it increase millage, why would GM or anybody else even do it ...
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Old 03-01-2009, 09:14 PM   #5
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Quote:
Originally Posted by domano 68 View Post
Just wanted to get some thoughts on the $470 upgrade to the GMPP air-box upgrade. I'd like to get it but the price is very high and I am wondering how much performace, additional mileage, etc it would add. TIA!
I'd wait to get a better aftermarket CAI for less money.
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Old 03-01-2009, 09:20 PM   #6
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So if it increase millage, why would GM or anybody else even do it ...
The sound deadener fell off and got sucked into the air box. It sits about an inch in front of the opening and covers a hole into the fender.
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Old 03-01-2009, 09:22 PM   #7
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I live in BX, NY, all my life ive heard "you don't want CAI in NY, whats teh reasoning and is tehre any truth behind this ?
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Old 03-01-2009, 10:13 PM   #8
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I live in BX, NY, all my life ive heard "you don't want CAI in NY, whats teh reasoning and is tehre any truth behind this ?
Why? b/c of the temp? That would be false. Colder the air the denser the charge which = more power. On our sleds (snowmobiles) we even use CAI set-ups to get more power. On the old 2 strokes you had to manually richen them up if it got too cold. But the computers take care of that on the 4 strokers now.
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Old 03-01-2009, 10:17 PM   #9
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I live in BX, NY, all my life ive heard "you don't want CAI in NY, whats teh reasoning and is tehre any truth behind this ?
Only thing I can think of is that if you are stuck in traffic all the time it doesn't do much good for ya if you only drive 25-30mph, lol....
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Old 03-01-2009, 10:27 PM   #10
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If I remember correctly, on older carbureted engines, a heat pipe ran into the intake from the exhaust heat shield to prevent engine stressing. People would flip over the filter can and run the risk of damaging the engine a frosty day
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Old 03-01-2009, 11:13 PM   #11
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I have a question. Is the GMPP intake just a chromed up stock intake with a K&N drop in filler with a non plastic pipe? Is it that the same as just putting a $40 K&N drop in filler without the chrome? That only will give you about 3-4 hp right?
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Old 03-01-2009, 11:25 PM   #12
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The Aluminum pipe between the throttle body and air box has the resonators removed. After that it's all speculation, the air inlet routing could be different for all I know.
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Old 03-02-2009, 05:56 AM   #13
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I will never use a K&N or simular type filter again. Test repeatedly show that they filter less, get dirty faster, clog faster, than OEM parts.
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Old 03-02-2009, 11:07 AM   #14
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I will never use a K&N or simular type filter again. Test repeatedly show that they filter less, get dirty faster, clog faster, than OEM parts.
Which tests might those be?

Just curious for some sources, I've never heard of nor had any problems with these types of filters.
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