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Ships Between 3/27 - 3/29
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- Part #:77-2578KS
- Estimated Horsepower Gain: 9.19 HP @ 4914 RPM
- Download installation instructions (PDF)
- Includes K&N filter # RF-1048
- Compatible with filter wrap # RF-1048DK (not included)
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K&N 77 Series Metal Intake Kit Part #77-2578KS Customer Reviews
6 Customer Reviews
Reviewed by Brian Z (CHESAPEAKE, VA) Reviewed for a 2012 Ford Flex — Aug 02, 2014 9:38 AM
The installation was easy, sound is amazing and a noticeable increase in acceleration. I just wish that the shroud covered the whole filter like the ARID system. Don't think there is any benefit to fuel consumption but that maybe because I have a heavy foot sometimes.
Reviewed by Clint S (Vancouver, WA) Reviewed for a 2010 Ford Flex — Jul 25, 2014 8:46 PM
Impressed with the instructions and how custom this really is. Went on easy enough only had to backtrack a couple of times. Makes the 3.5 liter v-6 sound pretty tough (non-turbo), we'll see how it does on MPG and towing (if a few horsepower is even noticeable). Biggest concern is when it comes time to clean it and remove the filter, a lot of stuff will have to be loosened, disconnected and moved to to the tight clearance. Great value, fast shipping. Came with the bonus cleaner and oil.
Reviewed by JOHN B (Strawn, TX) Reviewed for a 2012 Ford F-150 — Mar 20, 2012 7:21 AM
Installed per included instructions. Everything fine till time for attachment of Air flow sensor and plastic adapter. 2 screws/bolts were missing from hardware kit: 4mm x.70 and defective plastic elbw for hose attachment. Threads would not filt metal adapter. One was course thread other was finer thread. Found an adapter at a salvage yard.
Reviewed by Sean M (Niceville, FL) — May 28, 2011 11:01 AM