K&N FIPK vs 77 - why the difference?
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K&N FIPK vs 77 - why the difference?
OK, maybe someone can explain this to me... Straight from K&N's website:
FIPK (K&N 57) - 15.47 HP @ 3829 RPM
K&N 77 - 9.53 HP @ 3725 RPM
Why the 6HP drop off from using a plastic vs. a polished metal tube? They look identical otherwise
FIPK (K&N 57) - 15.47 HP @ 3829 RPM
K&N 77 - 9.53 HP @ 3725 RPM
Why the 6HP drop off from using a plastic vs. a polished metal tube? They look identical otherwise
