NOT a fan of the 'K+N' or 'K+N' clone air filters. On my old MB diesel board the conclusion was that they do allow more crud to get past than the OEM paper filters.
Oiled element air filters can cause you big grief. Too much oil combined with the high temps in our Boxster's engine bay can lead to a fouled up (literally) MAF.
If you choose to go this route be very cautious when cleaning and reoiling the element, you do not want to buy a new MAF.
Do any of the companies that are selling these kits offer certified dyno results of their claimed HP gains?
IMHO you may gain a little HP, the trade off is more dirt in the engine, risk of MAF failure, and more noise. Our cars are damn good from the factory, "improving" the car is almost always a trade off.
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06S White, Blue, Blue /ex sniff sniff
Giant Ass 2002 Gulfstream 40' 330hp Cat
2007 Prius to drag behind
Rick Lindquist
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