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Old 10-03-2012, 01:24 PM   #28
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Originally Posted by thehun View Post
I believe it is 4" filter...flange is like .5"

The UNI UP-4275ST filter has the following dimensions

4.5" (115mm) overall OD
2.75" (70.0mm) inlet ID
4" (101.6mm) installed height
0 straight inlet, no angle
After submitting the question about UP6275ST, I finally got an answer from UNI:


6 is the foam length.

Overall approx. 6 long.

Best regards,

Tom Gross

V.P Sales
So, 4", 6" is indeed not the overall length. It is only the length of the filter element. Unfortunately, that means the 6" filter will probably be too long for installation on a K&N Typhoon.
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