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K&N
Air Filter and Airbox Modification
Well, the K&N Air Filter (part number is 33-2140-1) is pretty
self explanitory, and is a direct replacement. As you can see
from the Dyno Chart I picked up
5 horses, and 4 ft/lbs. at peak, and maximum gains of 8 horsepower
and 8 ft/lbs, with nothing more than a simple swap from the stock
filter.
The modification to the airbox that I have done is cut several
2" holes in the bottom. All you need is a drill, the right
attachment and a couple of minutes. Here is a picture of the airbox,
after I cut the holes.
I can't say that huge gains were noticed, but it does seem to
rev up a little quicker, and the sound of the blower is louder.
For a free mod, and only taking a couple of minutes to complete,
how can you go wrong? I wouldn't be surprised if I picked up a
couple of extra horses. Besides, from what I have seen, there
hasen't been huge gains made by anyone installing an aftermarket
CAI, either. In the future, I plan to put two larger holes to
each sid if the centrally located hole, as well.
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