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Add 7.17 Horsepower to Non-Turbo Chrysler PT Cruiser with K&N Air Intake Kit

The Chrysler PT Cruiser is known for its retro styling and spacious interior. Handling and steering are good and its ride is smooth.

K&N Engineering 57-1550 for 2006 and 2007 Chrysler PT Cruiser with a non-turbo engine
K&N Engineering 57-1550 for 2006 through 2010 Chrysler PT Cruiser with a non-turbo engine
K&N Engineering has developed a performance air intake system (57-1550) that is street legal in 50 states for the 2006 through 2010 Chrysler PT Cruiser with 2.4 liter non turbo engine. K&N dynamometer testing shows a 7.17 horsepower gain at 5004 rpm.
Chrysler PT Cruiser with K&N air intake 57-1550 installed
Chrysler PT Cruiser with K&N air intake 57-1550 installed

Dyno chart for 2007 Chrysler PT Cruiser with a 2.4 liter non-turbo engine
Dyno chart for 2007 Chrysler PT Cruiser with a 2.4 liter non-turbo engine

The 57-1550 features a specially molded intake tube and a large K&N air filter. The air filter, RP-4660, fits into the stock location. Cooler outside air is directed toward the K&N air filter from the factory fresh air duct.

K&N developed a new heat shield for this particular engine and designed the tube to accommodate front wheel drive and the transmission. The electronic components under the hood were repositioned with the new design of the PT cruiser. The heat shield isolates the K&N air filter from the engine heat. This in turn keeps a cooler air charge going into the engine for an instant power gain.

The high flow technology invented by K&N and made in the USA provides the best balance of airflow and filtration. The RP-4660 is also washable and reusable and can go up to 100,000 miles before cleaning is necessary. The 57-1550 can be easily installed in 90 minutes or less and is backed by the K&N Million Mile Limited Warranty.

The 57-1550 fits the following PT Cruisers:

2010 Chrysler PT Cruiser 2.4L
2009 Chrysler PT Cruiser 2.4L
2008 Chrysler PT Cruiser 2.4L
2007 Chrysler PT Cruiser 2.4L
2006 Chrysler PT Cruiser 2.4L

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.

2007 and 2008 Dodge Nitro Owners Gain Estimated 11.7 Horsepower with K&N Air Intake Kit

The Dodge Nitro is a midsize SUV that is known for its bold looks and roomy cargo. It has an independent front and solid rear suspension system for a firm ride.

K&N's 57-1554 air intake system for Dodge Nitro 3.7 liter V6 engine
K&N's 57-1554 air intake system for Dodge Nitro 3.7 liter V6 engine

2007 Dodge Nitro
2007 Dodge Nitro
K&N Engineering has developed a performance air intake system (57-1554) that is street legal in 50 states for the 2007 and 2008 Dodge Nitro 3.7 liter V8 engine. K&N dynamometer testing shows an estimated 11.7 horsepower gain at 4260 rpm.
57-1554 K&N air intake system installed in 2007 Dodge Nitro
57-1554 K&N air intake system installed in 2007 Dodge Nitro


Dyno chart displays hp gain for 2007 Dodge Nitro with K&N air intake system
Dyno chart displays hp gain for 2007 Dodge Nitro with K&N air intake system

The 57-1554 features a specially molded intake tube and a large open element chrome top K&N air filter. The air filter, RF-1041, rests behind a powder coated steel heat shield. This helps isolate it from the rest of the engine compartment. Cooler outside air is directed toward the K&N air filter from the factory fresh air duct. A steady supply of unrestricted airflow reaches the Nitro’s engine for an instant performance gain. No other modifications are necessary.

The high flow technology invented by K&N and made in the USA provides the best balance of airflow and filtration. The RF-1041 is also washable and reusable and can go up to 100,000 miles before cleaning is necessary.

The 57-1554 K&N air intake system can be easily installed in 90 minutes or less with a socket set, flat blade screwdriver and a 10mm wrench. The K&N air intake system is backed by the K&N Million Mile Limited Warranty.

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.

Jeep Cherokee & Commander Owners Add Estimated 15.30 Horsepower with K&N Air Intake System

The Jeep Grand Cherokee and Jeep Commander set the standard for a comfortable SUV with easy handling. As a midsize SUV it offers a mix of car and truck type construction.

K&N air intake kit for Jeep Grand Cherokee and Jeep Commander
K&N air intake kit for Jeep Grand Cherokee and Jeep Commander

2007 Jeep Grand Cherokee
2007 Jeep Grand Cherokee
K&N Engineering has released a new air intake system, part number 57-1549 for the 2005, 2006 and 2007 Jeep Grand Cherokee 5.7 liter V8 engine and the 2006 and 2007 Jeep Commander 5.7 liter V8 engine. K&N dynamometer tests show an estimated 15.30 horsepower gain @ 5046 RPM. The chrome top K&N air filter (RF-1048) sits behind a powder coated steel heat shield which helps isolate it from the rest of the engine compartment. This combination allows for a steady supply of unrestricted airflow to reach the Jeep's engine providing an instant performance gain with no other modifications necessary.
Power Gain Chart for Jeep Grand Cherokee with K&N Air Intake
Power Gain Chart for Jeep Grand Cherokee with K&N Air Intake

K&N's air intake design provides excellent air filtration and lower restriction than the factory air box system. The heat shield assembly is installed into the engine bay using factory mounting points. The heat shield isolates the K&N air filter from the hotter temperatures around the engine and allows it to receive a consistent flow of fresh cooler air.

The chrome top of the large RF-1048 air filter stops dust and dirt by using multiple layers of cotton and 1.45 oz, of K&N filter oil. This high flow technology invented by K&N provides the best balance of airflow and filtration. Washable and reusable K&N air intake filters can go up to 100,000 miles before cleaning is required.

The 57-1549 can be easily installed in 90 minutes or less and is backed by the K&N Million Mile Limited Warranty. This intake is street legal in 50 states for the applications mentioned in this story.

The K&N 57-1549 air instake system fits the following Jeeps:

2010 Jeep Grand Cherokee 5.7L V8
2010 Jeep Commander 5.7L V8
2009 Jeep Grand Cherokee 5.7L V8
2009 Jeep Commander 5.7L V8
2008 Jeep Grand Cherokee 5.7L V8
2008 Jeep Commander 5.7L V8
2007 Jeep Grand Cherokee III 5.7L V8
2007 Jeep Grand Cherokee 5.7L V8
2007 Jeep Commander 5.7L V8
2006 Jeep Grand Cherokee III 5.7L V8
2006 Jeep Grand Cherokee 5.7L V8
2006 Jeep Commander 5.7L V8
2005 Jeep Grand Cherokee III 5.7L V8
2005 Jeep Grand Cherokee 5.7L V8

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.

2007 & 2008 Ford F-150 4.6L Gains Estimated 9.8 Horsepower with K&N Performance Air Intake System

The Ford F-150 series has a style borrowed from the Mighty F-350 Tonka concept truck. The F-150 grilles are trapezoidal. Both regular and Super Cab pickups can have a 6.5 or 8 foot cargo bed. Short beds are also available on this popular truck that closes in on the million unit mark annually. K&N Engineering has designed a high-flow air intake system (57-2574) for 2007 & 2008 Ford F150 4.6 liter V8 engine.

Air Intake for 2007 and 2008 Ford F-150
Air Intake for 2007 & 2008 Ford F-150

2007 Ford F-150
2007 Ford F-150
K&N dynamometer testing shows a 9.8 horsepower gain @ 4200 RPM. K&N designers removed the OE air box and intake and built a larger intake system to open up the breathing capacity for the 4.6 liter engine to get more air and power.
Air Intake Installed in 2007 Ford F-150
Air Intake Installed in 2007 Ford F-150

Power Gain Chart for 2007 & 2008 Ford F-150 with K&N Air Intake
Power Gain Chart for 2007 & 2008 Ford F-150 with K&N Air Intake

The K&N air intake design provides excellent air filtration and lower restriction than the factory air box system. This results in an immediate power gain.

A large chrome top K&N high flow air filter (RF-1041) allows virtually free flowing air into the intake tube and increased dirt capacity. K&N also incorporated a radius adapter to help smooth out air flow coming through the air filter. K&N air intake systems are designed to increase filtering capacity and improve throttle response.

The heat shield is engineered to isolate the oversized K&N high flow air filter from engine bay heat and allows it to receive a consistent flow of fresh cooler air.

The 57-2574 can be easily installed in 90 minutes or less and is backed by the K&N Million Mile Limited Warranty. This intake is street legal for 2007 & 2008 Ford F-150 4.6 liter V8 engine in 50 states.

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.

British Supersport Cup Resumes at Oulton Park in Cheshire, England

Harrison Brothers Racing is ready for the next round of the Fuchs Silkolene British Supersport Cup at Oulton Park in Cheshire. Richie and Jonathan Harrison are happy to end an enforced two round sabbatical after two separate motorcycle crashes at two earlier races.
Richie Harrison on 2007 Yamaha Superstock Spec motorcycle
Richie Harrison on 2007 Yamaha Superstock Spec motorcycle
As HBR enters the second half of the season the riders hope to improve their standings. “We have added a brand new full race exhaust system to my machine,” said Richie Harrison. “My bike has a whole new torque feel at the back wheel than we had before.”

Jonathan Harrison ready for second half of British Supersport Cup
Jonathan Harrison ready for second half of British Supersport Cup
Both riders have struggled throughout the first half of the season with their 121 bhp Superstock spec machines. Many of their competitors have motorcycles with more bhp and HBR has to work harder with their engines to get to the grid. The good news is, Richie and Jonathan both have improved their personal best lap times at every race this season.

“The HBR 2007 Yamaha with K&N Engineering products feels great,” said Richie. “I’m starting to gel with the bike and am gaining back my confidence.”

K&N Engineering has supplied Harrison Brothers with parts since 2005. “We know with K&N our bikes are working at their best,” said Richie Harrison. “We never have a problem with any K&N products or services. Due to the excellent products provided by our sponsors we go to the race track knowing we can race the bikes to the best of our ability.”

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.