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| K&N 57-2541 Fuel Injection Performance Kit Gen2 Air Intake Kit | 
 enlarge | Brand: K&N
Category: Automotive Parts And Accessories
List Price: $399.00
Buy New: $253.08
You Save: $145.92 (37%)
Buy New from $253.08
Avg. Customer Rating:  (3 reviews)
Sales Rank: 20590
Media: Misc.
Autographed: No
Memorabilia: No
Shipping Weight (lbs): 21
Dimensions (in): 18 x 18 x 12
MPN: 572541
Model: 57-2541
UPC: 024844104434
EAN: 0024844104434
ASIN: B000CO81KA
Availability: Usually ships in 1-2 business days
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| Features:
| • | Estimated HorsePower Gain Claimed by Manufacturer 6.56 HP @ 5000 RPM | | • | More usable power and acceleration throughout the engine's RPM range | | • | Easy to install using tools commonly available | | • | Most are street legal in all 50 states | | • | Filters are washable and reusable, and are backed by a million mile limited warranty |
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| Editorial Reviews:
Product Description
K&N Engineering 57 Series Gen II Air Intake Kits (FIPK's) by K & N air filters are built for many different vehicles and represent a dramatic improvement over a K&N O/E replacement filter alone; More horse power, fuel economy and engine torque for your car, pickup, sport utility vehicle or mini van. The 57 Series Intakes use only non-metallic rotationally molded tubes that can reduce air temperature and decrease intake sound over a metal tube. Restriction can exist BETWEEN an air filter and the engine reducing the benefit of a K&N Air Filter. The weakest link in the airflow ?chain? robs a vehicle of its natural horsepower. Often that weak point is the factory air path leading to the Engine. K&N Air Intake Kits virtually eliminate air path restriction by replacing the air filter and the entire air path to the engine. The aerodynamically engineered tube drives a massive amount of air into an engine, which translates into POWER. K&N 57 Series kits are truly state-of-the-art. We start with the largest conical shaped high-flow air filter we can fit into the engine compartment while using factory holes and mounting points. This extra filter size provides even more airflow at lower restriction than a standard K&N O/E replacement filter that is limited to the size of the factory air box. The oversized air filter also captures and holds more dirt increasing the service life before a cleaning is required (up to 100,000 miles). When possible, the filter is isolated from high engine temperature by a heat shield designed to lower the temperature of the air entering the engine, which increases horsepower. Next we attach the filter to a rotationally molded tube made from interlaced High Density Polyethylene (HDPE). This process allows us to precisely shape the tube to reduce turbulence and accelerate airflow into the engine.
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| Customer Reviews:
 2003 F-150 K&N Fuel Injection Performance March 16, 2008
1 out of 1 found this review helpful
So far the K&N Fuel Injection Performance has been great to me. It was simple to install only taking about 45 min. This summer is when the true test will start.
 Great product and FAST shipping November 30, 2007
1 out of 1 found this review helpful
I drive a 1998 Ford Expedition with the 5.4 engine. WOW! This intake made a difference in acceleration and increased my MPG by at least 3 on the highway. I highly recommend it to anybody!
Great power and economy May 24, 2007
3 out of 4 found this review helpful
I bought this one for my ford Lobo (F-150 xlt) 2003, installation was very easy in about an hour, once you start it you can hear the difference but wait untill you push that pedal to bottom, you her your engine snoring like never before and the acceleration as well, great product. I also saw about a 18% more mileage after the installation.
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