Max Power tested panels and cones in reticulated foam and cotton gauze.
Same increases on the dyno...not much.
I've tried both. They're the same, IMO.
Someone (who usually owns and swears that a foam panel can fly) will tell you K&N's oil will kill your MAF, but there have been no major runs of bad MAF's due to any one thing...including the filter.
I personally prefer K&N filters. I've used them for several years on several different types of vehicles (GMC, 4 VWs, Toyota Landcruiser) with absolutely no problems, including on my wife's 1.8T.
Take a look at an oiled foam lawnmower filter that is a couple of years old, and you'll see some deterioration. It may be apples to oranges, but I like the K&N million mile warranty.
I can't find the article anymore, but both and stock were tested independently in a lab.
The K&N flows more air and more dirt than stock as well.
The ITG flows more air and same amount of dirt as stock.
Personally, I would not want more dirt being sucked by the engine http://****************.com/smile/emthdown.gif
True dat the ITG, as any other foam filter have tendencies to fall apart as it gets older, but aren't we all?
Have u ever thought about a BMC drop in filter? The BMC CDA has been pushed on this forum for the last few weeks, while the BMC drop in has been forgotten. It flows more air and will not let dirt in. Also I have a dyno comparing some drop in filters. http://forums.vwvortex.com/zerothread?id=154109
If you are interested to try drop me an email at [email protected]
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