Review on K&N RK-3947X Performance Air Intake System by Matt Louis
It is big! for filter
I knew that this filter is thick and protrudes more than the regular one, but it is literally so big that it is difficult to drive with it. If you bought this intake system, there is a smart solution. Order K&N E-3986 replacement filters (available from Revain) and shorter spacers part no. 06500-1 at K&N. This replacement filter is twice as thin as the RK-3047, making the system very comfortable to drive.
- spare parts
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