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Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado/GMC Sierra - Owners hangout 
5688 messages, Last post on Oct 17, 2006 at 8:34 PM
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Replying to: m_boise (Aug 09, 2005 12:33 pm) How it affects warranty depends on the service manager you deal with. Best to ask him as the answers will vary. Regardless what K&N and Moss Magnuson Act says about aftermarket accessories.....it all comes down to whether the dealership you're working with agrees to it. I would hate to have to go thru a lawsuit to prove a point about an aftermarket air filter.
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Replying to: obyone (Aug 09, 2005 5:54 pm)
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The high capacity air cleaner that comes with the Z-71 package (or trailer package) is nothing more than a different air filter. When you go to replace the filter you can pick which one you want - regular of high capacity. If you look at both side by side - unless you have a microscope - you will not be able to see any difference. K&N is a JOKE - as are all the after market air filter crap that is sold. The adds claim UP TO 500 additional HP & 65 more miles per gallon - (or whatever) I have seen guys dyno their cars/trucks - then add a K&N then redo the dyno - NO DIFFERENCE in HP or Torque. The only thing they do is REDUCE THE WEIGHT (of your wallet) But wait - they also give your engine a cool sucking sound when you step on the gas. I really think some guys HEAR that sound and really think that they are going faster. |
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Replying to: m_boise (Aug 11, 2005 6:13 am) K&N flows more air. Air that has been filtered thru cotton gauze and oil. It's that oil that makes things a little messy if you apply too much after washing the filter. Course the downside is that if you don't apply enough oil, you will be allowing additional contaminants into your system. Since K&N has no specific amount of oil to add to the filter nor a way to consistently apply it. I'd say you would be taking a risk of having too much or too little and both with consequences.
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Replying to: obyone (Aug 11, 2005 8:11 am) 
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Replying to: txyank1 (Aug 11, 2005 10:46 am) I can't really say I gained anything with my Borla Cat-Back system either but it sure made the truck sound healthier than that stock exhaust. Ray T. 
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I just bought a 2005 silverado 1500 crew cab with the 5.3L V8. I am not sure how to figure out what transmission I have in it. I have been told they come with either an Allison or some other kind, and I'm guessing the Allison it would come with is the 4L80e. If anyone has any idea how to find out, or what transmission the 5.3L engines generally come with in the 1500's, I'm all ears.
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Replying to: gmtruckguy (Aug 11, 2005 5:39 pm) |
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Replying to: rayt2 (Aug 11, 2005 12:37 pm) 
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It's true about over oiling those things. I have the stock replacement in my truck. Recently registered a DTC, P0101-Mass Air Flow System. When I took it off I noticed what appeared to be soot coating the honeycomb and those other thingies just downstream. Soot? Didn't make sense. So I blasted it with some B-12 (frowned upon by the book) and put it back on noticing a little improvement. Later concluded the "soot" was a thin coating of oil from the K&N which had collected microscopic particles of dirt. That's the theory anyway. I intend to take it off again and do a more thorough job (before I spend 200 bucks on a new one). -David |
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