Compatible: (4.6L)
1996 - 2001 Ford Mustang SVT Cobra
2001 Ford Mustang Bullitt
The K&N 57-2523-2 FIPK air intake system replaces the restrictive factory air filter and air intake housing in some Ford Mustang models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine's RPM range. The 57-2523-2 air intake comes with a chrome topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through an aerodynamically engineered intake tube into the engine's throttle body for a guaranteed power gain. The oversized cone shaped air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points and accommodates the factory mass air sensor. The installation requires commonly available tools to do the job. K&N 57 Series FIPK's are street legal in all 50 US states and come with K&N's Million Mile Limited Warranty.
- Guaranteed to increase horsepower
- Designed to improve throttle response and engine sound
- Lasts up to 100,000 miles before service is required (depending on driving conditions)
- Easy to install, usually in 90 minutes or less
- Replaces entire factory air intake system
- Washable and reusable lifetime air filter
- K&N Million Mile Limited Warranty
| Estimated Horsepower Gain | 12.05 HP @ 5860 RPM |
| Replacement Filter | RU-1048 |
| Air Filter Color | Red |
| Air Filter Material | Cotton Gauze |
| Air Filter Outlet Shape | Round |
| Clamps Included | 1 |
| Clamp Material | Stainless Steel |
| Clamp Style | Regular |
| CARB EO Number | D-269-25 |
| Couplers Included | None |
| Type | Gen II |
| Product Style | 57 Series FIPK |
| Alternate Replacement Filter | RF-1048/RU-1048XD |
| Street Legal In All US States | Yes |
| TUV Approved (Europe) | No |
| Weight | 6.5 lb (3 kg) |
| Product Box Height | 12.5 in (318 mm) |
| Product Box Length | 20.25 in (514 mm) |
| Product Box Width | 12.25 in (311 mm) |
| Mounting Hardware Included | Yes |
| Warranty | 1,000,000 Miles/10 Year |
Filtration & Engine Protection
K&N automotive filters offer an optimal blend of high air flow, filtration efficiency, durability and dust capacity. K&N high flow filter media has been tested in our own in-house laboratories and by independent labs using the ISO5011 air filtration standard developed by the Society of Automotive Engineers. Our goal at K&N is to design reusable filters with the most possible airflow while providing guaranteed engine protection.
Fuel Economy
Fuel economy testing and mileage claims are not as cut and dry as they may seem. The EPA's website states, "EPA's fuel economy estimates are designed to allow consumers to comparison shop. Your fuel economy will almost certainly vary from the EPA's fuel economy rating. This is based on a number of factors, such as weather, road conditions, your driving and maintenance habits, and your use of air conditioning." Many exaggerated claims are found in the marketplace by automotive product manufacturers claiming to improve vehicle gas mileage. K&N does not make any general fuel economy claims. We simply encourage you to try our washable filter products for yourself.
K&N Air Filter Oil
A K&N reusable filter is designed with four to six layers of cotton gauze media sandwiched between two aluminum wire screens. The cotton media is then treated with a specially formulated grade of filter oil that causes tackiness throughout the cotton's microscopic strands. The cotton in a K&N replacement air filter allows high volumes of airflow, and when combined with the tackiness of the filter oil creates an efficient filtering media that ensures engine protection.
K&N Consumer Protection
The K&N Consumer Protection Plan goes a step further than the K&N Million Mile Limited Warranty. At times, the performance aftermarket has been plagued by automotive manufacturers and auto dealers that may attempt to discourage you from modifying your vehicle. They would prefer that you buy OE parts and not customize your car or truck and have even voided their own manufacturer's warranty due to vehicle modifications. K&N and the Magnuson-Moss Warranty Act protect consumers from such denied warranty claims. When you buy a K&N OE replacement filter or air intake system you can be confident your vehicle's warranty will remain in effect. If you encounter a dealership that wants to void your warranty because of one of our products, K&N will resolve the issue so you won't have to. We believe K&N makes The World's Best Air Filter and we stand behind that claim 100 percent.
Consumer Protection Pledge
K&N pledges to our customers that they will not be taken advantage of and charged for a repair due to a dealership warranty denial blamed on the presence of a K&N product.
Install Guide:
Warranty:
MONEY-BACK GUARANTEE (ORDER SHIPS WITHIN 3 BUSINESS DAYS. RECEIVE A FULL REFUND IF NOT)