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Old 11-05-2013, 04:14 PM   #1
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Cold air intake

I have a 2010 Silverado 1500 5.3....I have friends telling me I need to install a cold air intake. They tell me the truck will run better, get better mileage etc..My concern is the warranty and extended warranty I have in place...Does something like this really help and how about the warranty ??
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Old 11-05-2013, 05:25 PM   #2
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An engine is a pump, the efficiency of a pump can't be improved by working on one end of the pump. Cold air intake will lighten your wallet and depending on how much this could slightly improve performance.
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Old 11-05-2013, 06:29 PM   #3
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Cold air intake

Quote:
Originally Posted by eldermike View Post
An engine is a pump, the efficiency of a pump can't be improved by working on one end of the pump. Cold air intake will lighten your wallet and depending on how much this could slightly improve performance.
X2 don't spend your money you will not see a difference other than your bank account balance will be a lot smaller. Just my .02
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Old 11-05-2013, 06:40 PM   #4
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Thx for your replies..that was my thought also..Better things to spend $$$ on
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Old 11-05-2013, 07:47 PM   #5
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But talk about intake AND exhaust and you could see some gains.
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Old 11-06-2013, 12:58 AM   #6
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It really depends on the vehicle. The exhaust in the post-'08 Titans was changed and to be very free-flowing, but Nissan didn't change the intake. The whole intake is more focused on noise reduction than any performance. I got a .5 mpg improvement in unloaded highway mileage from the Airraid CAI install, and it's unnoticed anywhere else. That is a VERY SMALL portion of my normal driving, so meh. Are you really going to feel the 8-10 hp that makes it to the wheels? What you WILL notice is a ton more noise. If you do exhaust at the same time you'll probably get some noticeable gains, but that is even more noise.

FYI, you cannot void your warranty installing a bolt-ons, unless you botch the install & suck something into the engine.
http://en.wikipedia.org/wiki/Magnuso...s_Warranty_Act
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Old 11-06-2013, 06:27 PM   #7
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A question, actually 2. Isn't the intake system of an internal combustion vehicle considered part of the anti-pollution controls and therefore any alteration might be construed a violation of EPA regulations and................

Since virtually everything under the hood is controlled by computer now doesn't an increase in airflow result in a proportional increase in fuel to the engine to compensate for disturbance of the "equilibrium" in the fuel/air mix, and result in greater fuel consumption than if the entire intake system is left in stock configuration? Not looking for controversy, just trying to comprehend how simply changing the intake is gonna matter that much.
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Old 11-07-2013, 06:43 AM   #8
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The intake as far as the air box and filter are not part of the anti-pollution controls. As long as the AIT sensor and MAP/MAF is used and not altered, the increased air flow (if it really is increased) will result in the engine pushing more fuel in to adjust A/F ratio based on what the catalytic converter(s) tell the ECM. That is why a cold air intake really doesn't make any difference in a N/A gas engine. Now in a turbocharged or supercharged engine where you are pumping air into the engine, a free flowing intake makes a difference unless the manufacturer has already done it. But you also need a free flowing exhaust as well.
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Old 11-07-2013, 09:48 AM   #9
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Cold air kits do really work. You get several benefits:
Colder air charge - cold air is denser air providing more oxygen to burn
Engine does not need to work as hard to draw in air saving fuel and freeing up horsepower
You have a reusable air filter saving replacement costs

In my situation I had a Silverado 3500 8.1L and since GM discontinued the engine they no longer sold a GM Performance Cold Air Kit for my truck. I was able to find a K&N cold air kit on Amazon for a little over $200 and I easily installed it myself using the supplied instructions. I didn't need to change the exhaust because GM had a large 3" exhaust on my truck to begin with. I noticed better fuel economy (1 mpg when towing) and more power especially when climbing mountain passes. Overall I would do it again. I plan on installing a cold air kit on my new 2014 Greyhawk. Unfortunately the Ford E450 has a restrictive exhaust so I will need to do a header back (Long tube headers) exhaust kit which is expensive to see any major gains. The OEM cannot void their warranty as a result of aftermarket additions unless they prove that the aftermarket addition caused the failure.
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Old 11-07-2013, 10:44 AM   #10
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You can use aftermarket products to improve a condition where a deficiency exists in the OEM design. That's all you can do. So what's deficient in the OEM design? The air intake on most OEM products comes from the wheelwell area, not from the engine compartment. So in most cases the air temp issue has been addressed already.

In the world of hot rods changes are made in stages. A stage addresses actual design intent of the OEM product against it's potential, and will have a positive outcome in power increase but most of the time if not always with a decrease in economy. Stage 1, (first stage over stock) would address the intake, exhaust and the programming of the fuel system at the same time. Stage 2 begins mechanical changes like cams, heads and cranks/pistons.

my 2 cents
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