

Better Acceleration
Increases Power (up to a 26 HP gain)
Filter is Washable and Reusable
Will NOT Void Vehicle Warranty
Lasts up to 50,000 miles before service
is required
Replaces OEM Filter and Air Box
CARB Approved
Emission Legal in all 50 US States.
10 Year / Million Mile Limited Warranty
Works with Original Equipment Manufacturer
Computer Systems
In the K&N tradition of engineering power, the K&N Fuel Injection Performance Kit (FIPK) dramatically reduces intake restriction as it smooths and straightens air flow. This allows your vehicle's engine to inhale a larger volume of air than the OEM air filter assembly. More air means more usable power and torque throughout the engine's RPM range. FIPKs are designed to replace the original air filter case without jeopardizing important emission standards. Exempted by the California Air Resource Board, FIPKs make it possible to experience the rapid acceleration of enhanced air flow while meeting the tough emissions standards of C.A.R.B.. These FIPKs are washable, reusable and backed by K&N's unique 10 year Million Mile Limited Warranty.
Jeep Liberty K&N FIPK DESIGN CONCEPT: |
The K&N FIPK dyno tests at a true 7.5hp increase for the 6cyl Liberty. Forget about all the other snake oil engine foo-foo that claims to increase power. The 50-state SMOG legal FIPK system is dyno-proven and DELIVERS!!! |
This isn't some metal tube with a filter stuck on the end, this is a precision tuned filtration system designed to maximize mileage and engine power. Silly little turbo-tornado-twister tube things can't begin to compete with this incredible tuned system. In a nutshell, you get what you pay for. The K&N FIPK delivers real power.

One step down from the complete FIPK system is the Factory replacement K&N Filter kit. An excellent upgrade to the factory intake system.
Picture shows the K&N performance filter replacement
for Liberty.
The secret lies in the K&N Filtercharger's unique design. Conventional filters use paper or foam material permeated with millions of tiny, irregular passages, that screen dirt particles out of the air. Because dirt particles are trapped inside the passages, they eventually clog; and when this occurs, airflow restriction increases dramatically. With the K&N, a special cotton fabric is sandwiched between the pleated aluminum screen wires. The pleated design provides five times more filtering surface over the element circumference. The cotton/screen wire filter media is then saturated with a formulated air filter oil. This is a factory filter replacement so it does not affect smog inspections as tube-arm style filter kits do. Fully 50-state smog legal. The K&N filter is an easy way to get a little extra power boost from your engine. K&N filterchargers are also a lifetime filter and will never need to be replaced. Comes with a 1,000,000 mile warranty!