Forum Discussion
SidecarFlip
Aug 01, 2017Explorer III
jimh425 wrote:
I haven't personally done the filter/HP test on Dyno, but from what I've read, there is no nominal HP difference between a Donaldson and K&N at under 500 HP with a PSD. However, there is a difference in how small a particles are filtered with the Donaldson being superior. If I'm not going get any difference, I'm going with the Donaldson to protect my turbo which is very expensive on a PSD. Of course, some of you may avoid a PSD which also might be less expensive. :)
I do use K&N on my gasoline non-turbo engines. I haven't found them to damage my gasoline engines and literally can feel the difference and get better MPG with my gasoline engines. YMMV.
A word of caution concerning K&N oiled filters and gasoline engines with fuel injection.
Cleaning a K&N and the re-oiling it with too much filter oil can foul the MAF sensor and cause the engine to run poorly. I've experienced that first hand and had to replace the MAF sensor on my wife's buggy. buggy.
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