Believe what you like but I don't see how either of those toys will do any good. As mentioned below already, if you saw an increase from using a K&N filter, then the old filter was already plugged... but I don't see how you would even see an increase because of a plugged filter on a modern engine. Most all gasoline engines today use a MAF sensor or Mass AirFlow, so it measures the total volume of air going into the engine and then computes the injector firing time based on that data. If you have a plugged filter or some other gadget stuck into the intake system, the MAF or MAP sensor will account for it... and then fire the appropriate amount of fuel. From what I saw on the cyclone website regarding mileage claims.... they basically only tested an old carburated engine or at best a throttle body injected engine with a more primitive control system, so mabey there was some gain there... but I doubt you would see any gain on a tune port/multi port injected engine.
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Today's Featured Article - Third Brush Generators - by Chris Pratt. While I love straightening sheet metal, cleaning, and painting old tractors, I use every excuse to avoid working on the on the electrics. I find the whole process sheer mystery. I have picked up and attempted to read every auto and farm electrics book with no improvement in the situation. They all seem to start with a chapter entitled "Theory of Electricity". After a few paragraphs I usually close the book and go back to banging out dents. A good friend and I were recently discussing our tractor electrical systems when he stated "I figure it all comes back to applying Ohms Law". At this point
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