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Discussion Starter #1
Anyone has experience with these reduced resistance air filters.


Are they better than the AMZOIL brand?
 

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I hear the Amsoil filters are good. Personally I believe the AFE Pro Guard 7 is the best aftermarket filter on the market.


MikeyB
 

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Discussion Starter #3
Thanks for replying.


Went to the internet site, checked their product. looks good, just about fell of my chair when I saw the Price $291.00 / filter.


Will have to think about that.
 

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Canadian_Frank


You can get the aFe filter as a drop-in that is will fit your airbox, that's what I use. It will cost between $80-90.00, at least that's what it does here in south Texas.
 

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Canadian_Frank,


This is why we ONLY sell Pro Guard 7, flows the air and keeps the dirt out. You would e surprised at the dirt that gets thru a 4 layer gaugze filter, especially on a diesel.


Here's what Dan Montegari of Precision Diesel Services says about advanced FLOW engineering's Pro-GUARD 7 filter media:


HIGH FLOW AIR INTAKE SYSTEMS
WHO IS THE BEST & WHY!


We received many letters asking which high flow air intake system to use. We decided to test a number of manufacturers’ systems to determine which system was superior. We tested each system and found systems manufactured by AFE (Advanced Flow Engineering) were the best by far.


Diesel engines use seven times more air than gasoline engines of equivalent size so clean cool air is a must for extended engine life, better fuel economy and additional power. A higher flow of intake air coupled with a high flow exhaust system allows for more power, a better fuel economy, extended engine life and reduced exhaust temperatures. On the other hand ingested dirt through the air intake system becomes Silicon in the engine oil, which is a harsh cutting agent and can damage your engine quickly.


We tested three very popular systems. I will not mention the names of the other systems as a courtesy but I will explain what problems we found with them. We evaluated the systems by a number of criteria, filtration protection, flow, and design, easy of installation and cost. Almost in the beginning of the tests we realized in most instances a new intake system was necessary to achieve our goals. We needed a kit that used mostly outside air and not hot engine compartment air. We decided to use systems designed to use mostly outside air.


Two manufacturers claimed their systems delivered cleaner air at a higher flow but this was far from the truth. We did not believe any of the manufacturers’ claims and tested each system by operating the vehicle 3,000 miles and performing an engine oil analysis to determine Silicon levels in the engine oil. The vehicle we used has an engine oil analysis performed at every oil change so we had a Silicon number of three (3) to base our tests on.


The first manufacturer’s system was fairly easy to install but we had problems with the oil used to coat the filter also coated the Mass Air Flow Sensor causing a service engine lamp to come on. I called the manufacturer but they had no explanation as to why this should happen but they had this complaint before. Through the three thousand mile test I had to clean the sensor three times to stop the service engine lamp from coming on. When the oil analysis results came back, it was discouraging with Silicon levels at eleven (11). I almost could not believe the result so we changed the oil and filter and repeated the test. The results were almost the same eliminating this manufacturer quickly. I contacted the manufacturer to discuss the results and they were not helpful and basically said, “what you see is what you get”!


We installed the second manufacturer’s system again changing the engine oil and operating the vehicle for three thousand miles. The first problem we encountered was the service engine lamp coming on and I thought the oil they used was coating the sensor again. I removed the sensor and found some oil on it which I cleaned off and reinstalled the sensor. Within ten miles the lamp was on again. I removed the sen
 

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Discussion Starter #6
Mark Craig


I have a 2004.5 Dodge 2500 Cummins.
<DIV>I am not too mechanically incline so I am hoping there are not too many changes I have to do to get the pro-Guard 7. Is this just a filter and a spray on or do I need to change the air intake system.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>Price for part numbers? </DIV>
<DIV> </DIV>
<DIV>Where to buy. Any Canadian retailers?</DIV>
<DIV> </DIV>
<DIV>Do you have a e-mail link?</DIV>
<DIV>
</DIV>
 

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AFE offers both cold air intake kits and drop in replacements with the Pro Guard 7.


At my next filter change I will be using the Pro Guard 7 drop in replacement. I already have the cheap airbox mod, 4" 90 degree plastic drain pipe at the bottom of the airbox.


MikeyB
 
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