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Jeep's popular Liberty model received an aggressive makeover for 2008. Bold lines, modern round-headlights, and that unmistakable vertical-slat grill compliment the very capable Liberty package. Seeing the potential for improvement K&N Engineering seized the opportunity to build one of their Performance Air Intake Systems (57-1559 and 57-1559) for the 2008 and 2009 Jeep Liberty with the 3.7L V6 engine.

K&N's Performance Air Intake System for 2008 and 2009 Jeep Liberty 3.7L V6

Dyno chart for 57-1559 and 57-1559
air intake systems

With the addition of K&N Engineering's Performance Air Intake Systems (57-1559 and 57-1559), Liberty owners can realize a gain of more than 11 horsepower. K&N's Research and Development Department tested a 2008 Jeep Liberty 3.7L V6 on our in-house dynamometer. Results showed an impressive 11.25 horsepower gain @ 4800 RPM.

K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten airflow. This allows your engine to pull in air with ease compared to the OEM air filter assembly. More air means more power and torque when you need it. With a K&N Performance Air Intake System, consumers can count on extra horsepower whether driving around town, towing, or hauling five passengers plus gear on a camping trip.

These air intake systems use a conical shaped chrome top high-flow air filter (RF-1048) and powder coated aluminum heat shield in place of the vehicle's stock air box. The result is an air filter that captures harmful particles, provides more surface area, flows more air, and has a long service life. This K&N air filter performs for up to 100,000 miles before service is required depending on driving conditions. Improving the air path between the filter and the motor is the rotationally-molded high-density polyethylene tube. It offers the most flexibility in design and outstanding horsepower numbers. It takes about 90 minutes or less to install this system with simple tools. It is covered by K&N's Million Mile Limited Warranty^™.

Find a K&N product for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer near you.

The Winner’s Circle was a family affair at the IHRA Northern Nationals in Martin, Missouri. Defending Super Rod World Champion Brian Folk took top honors in his category and his brother Nick Folk took the victory in Stock Eliminator. Nick Folk is a former Top Dragster World Champion.

IHRA Northern Nationals Winner's Circle for Folk Family Racing Team in Martin, Michigan, photo courtesy of BME Photography

The weekend began on a high note after Brain Folk drove the team’s Camaro Roadster to a semi-final finish in the annual Moser Axle Mania Shootout. The top 32 IHRA sportsman battle for a $51,000 purse in the Shootout. Folk advanced to the semi-final round, but lost in a close contest to Super Stock qualifier Gil Carty Jr. Folk Racing Team did not win the lion’s share of the prize purse, but enjoyed a good payday overall as second place winners in the shootout.

Folk Race Cars Camaro Roadster driven by Brian Folk


Wegner Racing Engines powered LS-1 Camaro driven by Nick Folk

“That second place win set the stage for the remainder of the weekend,” said Brian Folk. “Nick drove his Wegner Racing Engines powered LS-1 Camaro to the top qualifying spot and moved up the ranks.” Nick Folk took the victory and now has the lead in IHRA Stock Eliminator points. He is also a step closer to take the podium as the 2008 World Champion.

Brian Folk maneuvered his Camaro Roadster through a talented Super Rod field to the finals. He battled Jimmy Lewis, the runaway points leader in 2008 Super Rod championship points. Folk defeated Lewis, even thought the two left the starting line in unison.

“I was just lucky in the final,” said Brian Folk. “When we got near the finish line, he was ahead and I just gave up. Then I looked up and my win light was on. I couldn’t believe it.”

The Folk family uses K&N Products on all their vehicles. “Our K&N air and oil filters are the best on the market,” said Folk. “The dirt stays out of our engines and the filtration is great which gives us a competitive edge on the track."

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

The Porsche 911 is a racing car for the road with a lineage that dates back more than 40 years. In 1999 a new Porsche 911, known to purists as the 996, made its debut. Radical improvements were made to Porsche's flagship vehicle, most notably the new water-cooled 6-cylinder boxer engine.The company's racing heritagehelped shape the 996's driver environment, its controls, and of course, its performance.

K&N Engineering, Inc. has designed a Performance Air Intake System (57-7000) for the 2002 and 2003 Porsche Carrera 3.6L H6, 1999 to 2001 Porsche 911 3.4L H6, 2004 and 2005 Porsche 911 non-turbo 3.6L, and 2001 and 2002 Porsche 911 with the 3.6L engine.

The Porsche Carrera boasts increased performance over the previous generation 911. Install a K&N Performance Intake System and the Carrera is an even greater force to be reckoned with. K&N tests on our in-house dynamometer have shown an estimated gain of 23.80 Horsepower at 5500 RPM with the 57-7000 Intake System. "We were able to get such good horsepower because the original factory airbox is restrictive," said K&N Performance Kit Manager Bert Heck. "The design of the K&N Intake Tube and repositioning of the mass air sensor is a big reason why we were able to get so much power."

K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten airflow. This allows your engine to pull in air with ease compared to the OEM air filter assembly. More air means more power and torque when you need it. With a K&N Performance Air Intake System, consumers can count on extra horsepower whether driving around town, enjoying a winding mountain road, or shooting for a new track record.

This air intake system uses a conical shaped carbon fiber top high-flow air filter (RP- 4630). "We used the carbon top on the filter to add to the appeal of the Porsche look," said Heck. Also included with the 57-7000 is K&N Drycharger^® part number RC-4630DK.The K&N Drycharger^® is a silicone treated, polyester wrap that is made to cover K&N Air Filters. Uniform micron sized openings in the Drycharger allow optimum airflow, increase service life, and repel water.
This intake system uses the largest conical shaped High-Flow Carbon Top Air Filter (RP- 4630) that can fit into the engine compartment and a powder coated aluminum heat shield in place of the vehicle's stock air box. The result is an air filter that captures harmful particles, provides more surface area, flows more air, and has a long service life. This K&N air filter performs for up to 100,000 miles before service is required depending on driving conditions. Improving the air path between the filter and the motor is the rotationally-molded high-density polyethylene tube. It offers the most flexibility in design and outstanding horsepower numbers. "It's a very straight forward installation" according to Heck and takes about 90 minutes or less to install this system with simple tools. It is covered by K&N's Million Mile Limited Warranty^™ and is street legal in all 50 US States.

Find a K&N product for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer near you.

The record books show double World Speedway Grand Prix Champion Jason Crump has finished on the podium at the last four Scandinavian Grand Prix. The record books also show current points leader Nicki Pederson has failed to make the final on all four occasions.

Australian Ace Jason Crump confident about Scandinavian Grand Prix in Malilla

“If statistics are anything to hold on to, then Jason is in the chase for the World Championship,” said Roy Stone, Crump’s Media Relations Manager. “Jason is currently third overall in points standings, with Nicki Pederson of Denmark at first and Leigh Adams of Australia in second place.”

Jason Crump is a 17-time Grand Prix winner


World Speedway Grand Prix Champion Jason Crump is in third place after six rounds

“My chances of winning the World Championship are very much alive,” said Crump. “I will be racing with my K&N air filters as I always do and a win in Sweden will keep me in the running.”

Crump is just one Grand Prix win away from equaling the number of Grand Prix wins set by six-time World Speedway Champion Tony Rickardsson. “You don’t win World Championships on past performances,” said 17-time Grand Prix winner Crump. “There have been five different winners out of six Grand Prix this year and the field is very strong. I know what I need to do to win and I am feeling very confident now.”

Crump has had solid races over the last two months. “I will be going to Malilla in Sweden to win and capture as many points as I can,” he said. “I know I have a tough job ahead of me for the rest of the season. I will be fighting until the end.”

Follow Jason Crump throughout the racing season at the K&N news site. Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.

Championship Enduro Series 360 division racer Jessica Brannam found herself with her back against the wall in the last race of the season. The 17-year-old K&N Engineering sponsored racer entered the competition at Blackhawk Farms Raceway in Beloit, Illinois third overall in championship points standings.

17-year-old Jessica Brannam drove her go kart at Blackhawk Farms Raceway in the Championship Enduro Series

At the start of the race things did not go well for the McHenry, Illinois resident. There was a scoring glitch during qualifying and her fastest time was not recorded. That pushed her back from third to thirteenth position on the starting grid.

Go Kart racer Jessica Brannam moves up through the pack to eventually win the Championship Enduro Series

“There was also a problem with her go-kart,” said Jessica’s father Phil Brannam. “There wasn’t any time to fix it and the only choice was to send her out to race and hope for the best. Jessica drove her heart out.”

Jessica quickly moved her way up to sixth place and had enough points to squeeze out a season championship. “I felt as if I was driving with my brakes on the entire race,” she said. “I’m just happy we won another championship.”

Jessica Brannam and her family use K&N products 69-1016-1TS, HP-2006, RU-0110, 77-3036KP, HP-1008 and RU-0100 on their race vehicles and tow vehicles. "On the track we get great air flow and off the track our tow vehicles get great gas mileage with K&N," said Jessica's mother Diane Brannam. "Saving money on gas is important because we travel to about 50 races a year."

Jessica’s championship resume in 2008 includes a win in the River Valley Kart Series, the Briggs Animal heavy class and the 125 shifter no. 1 class. She has an overall total of 38 championships over eight years. Brannam plans to go to Atlanta for a National Division race in October. In the meantime, she is preparing for her first semester at college.

Find K&N products for your vehicle using the K&N application search then use the K&N dealer search to find a K&N dealer in your part of the world.