I dont know which one to go with. Please help with this poll! Thanks Ben http://www.dieselplace.com/forum/smileys/Rock On.gif

It looks like AFE Stage II.

I have tried stock, Amsoil drop in, K&N, and AFE Stage II, And without a doubt the AFE stage II is hands down the best, and it sounds better too.

Looking like the AFE is winning. Must mean something. Does this one spool up more or let more air in? Thanks Ben http://www.dieselplace.com/forum/smileys/Rock On.gif

Looking like the AFE is winning.* Must mean something.* Does this one spool up more or let more air in?* Thanks Ben http://www.dieselplace.com/forum/smileys/Rock On.gif

Not to rain on your parade, but there is no evidence to suggest that a fancy air intake alone gives you more HP or anything other than a thinner wallet and more dirt in your oil.

The stock system provides all the air the engine can use and probably cleans the air better than any of the above. The air filter study should shed some light on this subject. SPICER

I voted K&N intake wise. I like it, its plastic not metal. From what I recall, didnt AFE have a problem with the powdercoat paint coming off from inside? I'm not bashing AFE, as I have their pro-guard 7 filter on the K&N intake. I just remember sometime last winter there was a lenghty thread on AFE's intake...


Jason

I voted for OEM (Other) ... I've tried Amsoil and AFE Stage II ... but after hearing about the "tube paint peeling issue" I pulled it off and went back to stock/paper filter. No noticable change except I don't hear the turbo as much ...not that it was loud with the AFE II setup. Edited by: tophog

Morning Members,


Here is some independent testing done by a distributor of ours, he did this before he woudl sell ANY intake system. This is also the reason we ONLY sell AFE Pro Guard 7 systems and filters.


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 have the AFE Stage II. But how do I know if I have the Pro Guard 7? This this new or has it been included in the stage II kit from the beginning? I have had the AFE stage II for about one year.

I have the AFE Stage II. But how do I know if I have the Pro Guard 7? This this new or has it been included in the stage II kit from the beginning? I have had the AFE stage II for about one year.


You should have a receipt for about $60-80 depending on where you bought the filter http://www.dieselplace.com/forum/smileys/Big Smile.gif Not sure how much they are these days but that's approx. what they cost based on my last research which makes it hard to throw-away the perfectly good filter that came with the system.

SI if I understand this the filter that came with the AFE Stage kit is not the Pro Guard 7. And I have to pay for it separately at 60-80 bucks.

SI if I understand this the filter that came with the AFE Stage kit is not the Pro Guard 7. And I have to pay for it separately at 60-80 bucks.


Bingo

Volanthttp://www.dieselplace.com/forum/smileys/Approve.gif