Originally posted by Rmacin:
Is that a good flow rate or a bad flow rate. Im not a flow rate expert.



"Here is a rundown of the info I have so far:

K&N part# air flow dimensions (in)

RU-3530 646cfm 5.375 x 4.375 x 7
RC-4630 616cfm 5.5 x 4.5 x 6.5
RU-3130 536cfm 4.625 x 3.5 x 7
E-0998 682cfm unknown

BTW formula used for RU-3130 from K&N:
(base + top)/2=A, A x length x 6 x 3.14 =cfm"

This was from an earlier posting...