Rfi cold air intake, Parts description, Rfi lid – Bully Dog 54200 Rapid Flow Induction (RFI) Cold Air Intake User Manual
Page 3: Rfi base

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RFI COLD AIR INTAKE
Parts Description
RFI Lid
The easy-to-remove lid
replaces the stock lid and
allows for hassle-free filter
maintenance. When the
lid is installed, the latch
mounts should line up with
the latches on the base.
This will ensure that the lid
creates a good seal with the
enclosure base and that the latches close securely.
RFI Base
The base of the enclosure
is designed to bring in
large amounts of cool air
from outside the engine
bay, keeps it separate from
the hot environment under
the hood and houses the
air filter. There are two
features to notice about
the enclosure to ensure a
smooth and effective installation: (1) the circular hole on the
back of the base, where the RFI MAF tube will snap in and (2)
the circular holes in the bottom where rubber grommets from
the stock intake will be attached.