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K&N 77-2556KP 5.0 out of 5 stars 1 Customer Review
Intake Kits > Performance Intake Kit

 List Price: $622.50
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77-2556KP
 
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Built for performance and show utilizing the highest quality components, the K&N 77 Series High-Flow Performance Air Intake is a free-flowing mandrel-bent aluminum tube induction system designed for Trucks and Sport Utility Vehicles. 77-Series air intakes come with K&N's Million Mile Limited Warranty. K&N intake systems replace your vehicle's restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle's engine to inhale a larger amount of air than the OEM air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The filters on these kits are washable and reusable. Most of our intake kits are relatively easy to install using tools commonly available (see installation instructions). Some 77 Series Air Intakes are not legal for use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website vehicle parts search for specific CARB status. [MORE]
Available Information
Installation Instruction Sheet
Dyno Chart - 2004 Ford F150 5.4L - 9.55HP increase
News Story - Simple Performance Upgrades for Ford F-150 Pickup Trucks
News Story - Performance Parts for the Ford Expedition Add Power & Protection
News Story - DualLiner SEMA Booth Displays Ford F-150 with K&N Air Intake System
News Story - Sharks and Other Sea Life Stand Out at SEMA Show on 2004 Ford F-150
77-2556KP Vehicle Applications


Part 77-2556KP Product Specifications
Product Style: 77 Series Kits
Estimated Horsepower Gain: 9.55 HP @ 3724 RPM
Replacement Filter: RC-5046
Street Legal In All US States: See Application Link Below
TUV Approved (Europe): No
Intake Pipe Color / Finish: Polished
Weight: 11.3 lb (5.1 kg)
Product Box Length: 24.2 in (615 mm)
Product Box Width: 20.2 in (513 mm)
Product Box Height: 15.6 in (396 mm)


Horsepower gains based on similar vehicle dynamometer test. Results will vary.


Accessories
99-5050.jpg
99-5050 - Filter Care Service Kit - Squeeze
RC-5046.jpg
RC-5046 - Replacement Filter
RC-5046DK.jpg
RC-5046DK - Air Filter Wrap
RC-5046DL.jpg
RC-5046DL - Air Filter Wrap
RC-5046DR.jpg
RC-5046DR - Air Filter Wrap
RC-5046DY.jpg
RC-5046DY - Air Filter Wrap

Product Reviews      Review part 77-2556KP

 I'm a middle aged gear head. I've built everything from A-body Mopars of the 60's & 70's to the new mustangs, challengers, and camaros. Needless to say, I've been around the block. I've always used K&N products, we were building cold air and ram air intakes long before you could buy them off the shelf. I recently acquired a 2004 Ford F-150 5.4L V8... with almost a quarter million miles. It is in amazing condition but got a little sluggish over those miles. Throttle response was suffering as well. My first purchase for it was the 77-2556KP performance intake kit. After ripping out the stock air box, which was dirty but not shot I had my new intake installed in about 15 minutes. I jumped in and took the old girl for a test ride. I can crunch the numbers and give you some rough figures but I won't bore you. What I will do is tell you about the performance. The throttle had instant response, enough so that it even shocked me. I'm used to the throaty sound of a K&N system but wow it sounds good on this truck. I have a nice private road and when I got on it from a dead stop and had to back off of he pedal as my 7200 pound 250,000 mile 9 year old truck smoked its brand new tires. Will you see this kind of improvement on a brand new truck, in short not really. While you will experience better overall performance it will be hard to notice on a brand new vehicle. That being said when you hit that quarter million mile mark and your vehicle still performs like new, you can tip your hat to the folks at K&N. K&N is breathing a new life into my old truck, and it will do the same for yours.

If you're questioning the initial cost, don't. Remember you clean your K&N filter, not replace it. That alone covers the cost twice over if not more.

Still have doubts? Go outside, remove your air filter. Take a clean white cloth and wipe the inside of the air box after the filter. See all that grease, dust, dirt, and grime on the cloth... Well that's what's getting past your filter and going straight into your engine, slowly killing it. You won't find that in my intake or my engine, thanks to K&N.

Bad Dog Daddy, Toms River, New Jersey

K&N 77-2556KP fits the following:
2008 LINCOLN MARK LT 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2008 FORD F150 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2007 LINCOLN MARK LT 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2007 FORD LOBO 5.4L V8 F/I - All Street Legal In All US States: No TUV Approved (Europe): No
2007 FORD F150 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2006 LINCOLN MARK LT 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2006 FORD LOBO 5.4L V8 F/I - All Street Legal In All US States: No TUV Approved (Europe): No
2006 FORD F150 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2005 FORD LOBO 5.4L V8 F/I - All Street Legal In All US States: No TUV Approved (Europe): No
2005 FORD F150 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2005 FORD EXPEDITION 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No
2004 FORD LOBO 5.4L V8 F/I - All Street Legal In All US States: No TUV Approved (Europe): No
2004 FORD F150 5.4L V8 F/I - All Street Legal In All US States: Yes
CARB EO Number: D-269-37
TUV Approved (Europe): No