K&N Fuel Injection Performance Kits (FIPK's) are built for many different vehicles and represent a dramatic improvement over a K&N O/E replacement filter alone; they 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 Fuel Injection Performance Kits (FIPK) 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 Fuel Injection Performance Kits (FIPK) are truly state-of-the-art. K&N starts with the largest conical shaped high-flow air filter that 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 the filter is attached to a rotationally molded tube made from interlaced High Density Polyethylene (HDPE). This process allows the tube to be precisely shaped to reduce turbulence and accelerate airflow into the engine. This is why some tubes have unique shapes that are specifically engineered for each application. Finally the tube is connected to the engine with adapters made from high strength materials such as silicon and reinforced nylon and ensures long life. Put all this together and you have the best high-flow intake system available today. FEATURES * Guaranteed to Provide more HP and Increased Acceleration * Engineered to Specific Vehicle Design * Easy to Install, Usually in 90 minutes or less! * Lasts up to 100,000 Miles Before Service is Required (depending on driving conditions) * Million Mile Limited Warranty * Replaces OEM Filter and Air Box * Air Filter is Washable and Reusable * Works with Original Equipment Manufacturer Computer Systems * Designed to use Factory Holes & Mounting Points Whenever Possible * Most are CARB Exempt and street legal in all 50 US States
Features and Benefits
- K&N Million Mile Limited Warranty
- 50 State legal
Product Details
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Part Number: knn57-2578
Description: Performance Air Intake System
Air Filter Color: Red
Air Filter Material: Cotton Gauze
Air Filter Outlet Shape: Not Flanged
Clamp Material: Stainless Steel
Clamp Style: Regular
Clamps Included: 4
Estimated Horsepower Gain: 10.09 HP @ 5379 RPM
Product Style: 57 Series FIPK
Replacement Filter: 33-2431
Type: Gen II
Weight: 5.8 lb (2.6 kg)
CARB EO Number: D-269-48
Couplers Included: 2
Intake Pipe Color / Finish: Black
Intake Pipe Material: High-Density Cross-Linked Polyethylene
Title: K&N 57-2578 Performance Air Intake System
Estimated Horse Power Gain: 10.09 HP @ 5379 RPM
Filter Color: Red
Filter Material: Cotton Gauze
Horse Power Increase: 10 HP
Intake Pipe Material: High-Density Polyethylene
RPM: 5379
Mounting Hardware Included: Yes
Street Legal In All US States: Legal for use in all 50 states.
TUV Approved (Europe): No
Air Filter Height: 1.250 in. (32mm)
Item Weight: 5.800 lbs.
Product Box Height: 8.500 in. (216mm)
Product Box Length: 18.250 in. (464mm)
Product Box Width: 14.500 in. (368mm)
Street Legal: Yes
Air Box Included: No
Air Filter Element Washable: Yes
Clamp Color: Natural
Coupler Color: Black
Mass Air Flow Sensor Included: Mass Air Flow Sensor Adapter Included When Required
Oil Included: Filter Is Pre-Oiled
Package Material: Paperboard
Package Type: Box
Air Filter Washable: Yes
Clamp Color/Finish: Natural
Coupler Color/Finish: Black
Mass Air Flow Sensor Adapter Included: No
Oil Included: Yes
Warranty: No-Hassle Lifetime Limited
Clamp Quantity: 4
WARNING CA Proposition 65: Yes
WARNING CA Proposition 65Fits: 2011-2014 Ford Mustang (see fitment details).
