My bad. When I tried to imagine 3x the stock surface area on a
9" cone, or even cylinder, I just couldn't make it happen in my
head. So I double checked my math...
Doh! Forgot to halve the diameter to work with radius!
The 3" id, 4-5/8"- 6" x 9"L cone k&n (re-0810) has a basic
surface area of ~150.5 square inches. So a little over 50%
increase over stock, still not bad, and makes a heck of a lot
more sense. Sorry for any confusion.
Marty
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