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KTM 500/525 EXC/MXC/SX Motorcycles Now Benefit From a High Flow K&N Replacement Filter

Feb 7, 2008

KTM motorcycles are known for their power and performance. On trails, on the track, and even on the street, the KTM has earned a reputation of being a quick and competitive machine. Now, owners of 2001-2007 KTM 500/525 EXC/MXC/SX motorcycles can squeeze even more performance from their bikes by switching to K&N's new replacement high flow air filter.

KTM 500/525 EXC/MXC/SX Air Filter KT-5201

K&N designed the new KT-5201 air filter to provide high airflow and superior filtration. The stock air filter, filter holder, and filter support are removed, and in their place a K&N MX XStream air filter is attached to an included custom mounting

KTM 500/525 EXC/MXC/SX Air Filter KT-5201 Installed

plate. The provided custom bolt assembly keeps the filter tight against the mounting plate. The filter's sealing edge and mounting plate are matched so that the filter maintains a positive seal under all riding conditions. Multiple layers of K&N's high flow cotton media trap dust and dirt and allow only clean filtered air to reach the engine. The extra airflow available to the engine improves throttle response and acceleration.

The KT-5201 comes pre-oiled from K&N and ready to install. Photo illustrated instructions make installation quick and easy, and requires no jetting or tuning when used on a stock (unmodified) motorcycle. This air filter is backed by K&N's Racing and Off-Road Limited Warranty and can be cleaned and re-oiled for many worry-free seasons of use.

E-3042 is the replacement air filter for KT-5201.

K&N's KT-5201 MX XStream^® air filter fits the following KTM dirt bikes:
2007 KTM 250 XCF 250
2006 KTM 560 SMR 560
2006 KTM 250 SXF 250
2005 KTM 540 SXS RACING 540
2005 KTM 525 SX SUPERMOTO 525
2005 KTM 525 SX RACING 525
2005 KTM 525 SMR 525
2005 KTM 525 MXC-G RACING 525
2005 KTM 525 MXC DESERT RACING 525
2005 KTM 525 EXC-G RACING 525
2005 KTM 525 EXC RACING 525
2005 KTM 450 SXS RACING 450
2005 KTM 450 SX RACING 450
2005 KTM 450 SMR 450
2005 KTM 450 MXC RACING 450
2005 KTM 450 EXC-G RACING 450
2005 KTM 450 EXC RACING 450
2005 KTM 400 EXC-G RACING 400
2005 KTM 400 EXC RACING 400
2005 KTM 250 SXF 250
2005 KTM 250 EXC RACING 250
2004 KTM 540 SXS RACING 540
2004 KTM 525 SX SUPERMOTO 525
2004 KTM 525 SX RACING 525
2004 KTM 525 SMR 525
2004 KTM 525 MXC-G RACING 525
2004 KTM 525 MXC DESERT RACING 525
2004 KTM 525 EXC-G RACING 525
2004 KTM 525 EXC RACING 525
2004 KTM 450 XC CROSS COUNTRY 450
2004 KTM 450 SXS RACING 450
2004 KTM 450 SX RACING 450
2004 KTM 450 SMR 450
2004 KTM 450 MXC-G RACING 450
2004 KTM 450 EXC-G RACING 450
2004 KTM 450 EXC RACING 450
2004 KTM 400 EXC-G RACING 400
2004 KTM 400 EXC RACING 400
2004 KTM 250 EXC-G RACING 250
2004 KTM 250 EXC RACING 250
2003 KTM 540 SXS RACING 540
2003 KTM 525 SX RACING 525
2003 KTM 525 MXC-G RACING 525
2003 KTM 525 MXC DESERT RACING 525
2003 KTM 525 EXC-G RACING 525
2003 KTM 525 EXC RACING 525
2003 KTM 450 SXS RACING 450
2003 KTM 450 SX RACING 450
2003 KTM 450 MXC-G RACING 450
2003 KTM 450 EXC-G RACING 450
2003 KTM 450 EXC RACING 450
2003 KTM 250 EXC-G RACING 250
2003 KTM 250 EXC RACING 250
2002 KTM 540 SXS RACING 540
2002 KTM 520 SX RACING 520
2002 KTM 520 MXC RACING 520
2002 KTM 520 EXC-G RACING 520
2002 KTM 520 EXC RACING 520
2002 KTM 400 SX RACING 400
2002 KTM 400 MXC RACING 400
2002 KTM 400 EXC-G RACING 400
2002 KTM 250 EXC RACING 250
2002 KTM 250 EXC 250
2001 KTM 540 SXS RACING 540
2001 KTM 520 SX RACING 520
2001 KTM 520 MXC RACING 520
2001 KTM 520 EXC RACING 520
2001 KTM 400 SX RACING 400
2001 KTM 400 MXC RACING 400
2001 KTM 250 EXC RACING 250

To find a K&N dealer in your area, please visit our dealer search page. Use the K&N's web search to find K&N products for your dirt bike, car, truck or just about anything with an engine.

2007 through 2011 Dodge Nitro R/T Gains 8.7 More Horsepower with New K&N Air Intake

Feb 7, 2008

With its bold looks and ample cargo capacity, the Dodge Nitro is a stylish and versatile midsize SUV. The R/T package adds additional features such as 20" chrome wheels, a 4.0 liter engine, and a 5 speed automatic transmission that can also be shifted manually. K&N has released a new air intake system (part number 57-1556) which testing shows gets the Dodge Nitro R/T an additional 8.7 horsepower at 5006 RPM for the 2007, 2008, 2009, 2010, 2011 and 2012 Dodge Nitro that has the 4.0 liter engine at 5006 rpm.

Dodge Nitro R/T Air Intake 57-1556

Dodge Nitro R/T with Air Intake 57-1556 Installed

Dodge Nitro R/T Dyno Chart

The 57-1556 features a special molded plastic intake tube and a large open element conical air filter. The filter sits behind a powder coated steel heat shield which helps isolate it from the rest of the engine compartment. The factory fresh air duct is reused and helps direct cooler outside air toward the filter. This combination allows for a steady supply of unrestricted airflow to reach the Nitro's engine providing an instant performance gain with no other modifications necessary.

The chrome top of the large RF-1042 air filter adds a touch of class when opening the Nitro's hood. The 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. The RF-1042 is also washable and reusable, and can go up to 100,000 miles before cleaning is necessary.

The 57-1556 can be easily installed in 90 minutes or less with only a socket set, flat blade screwdriver, and a 10mm wrench. Photo illustrated instructions are included to guide you through the installation step by step. The entire system is backed by K&N's Million Mile Limited Warranty.

To find a K&N dealer in your area enter your zip or postal code on our Dealer Search page. Use our Application Search to find all K&N products for your vehicle.

NHRA Winternationals Kick Off at Pomona Dragway

Feb 7, 2008

The NHRA Winternationals get underway in Pomona, California the second weekend in February. K&N Engineering has several sponsored racers at the event and numerous competitors with K&N Engineering products. One of those sponsored racers is Del Worsham.

Del Worsham has raced in the NHRA Winternationals for 17 seasons

Pomona Raceway is Del Worsham's home track

Worsham competed in his first NHRA Winternationals in 1991 and has two career victories at the historic Pomona Raceway. Despite those two trophies, Worsham remains winless in winter. Both of his Pomona victories came at the season-ending finals in November.

Worsham uses K&N oil filter HP-5001

Del Worsham's NHRA Funny Car

Worsham only lives 20 minutes from the Fairplex facility at Pomona and is looking forward to a home track victory. When the NHRA POWERade tour kicks off this weekend, it will be Worsham’s 18th shot at glory in the tour’s traditional season opener.

“We want to hit the track running well, get qualified solidly, and do our best on Sunday,” said Worsham. “It’s so hard to win one of these races. I try not to think in those terms before I’ve even made a qualifying run. The first challenge is getting qualified. We ran 4.79 in Pomona a year ago, and got bumped from the field. I have a great deal of respect for how hard it is to grab one of the 16 best times here. I know we’re fast enough to qualify solidly, even near the top. The first step is to get in solidly.”

Worsham said he has plans to take the Checker, Schuck’s Kragen car with K&N products back to the winner’s circle more than once in 2008. In the off-season Worsham spent all his energy on the construction of a new chassis for a single Funny Car, instead of the two he has owned and operated since 2000. “I did not want to reinvent the wheel,” he said. “I kept an eye on what kept my car running so well in the second half of 2007.”

Del Worsham and his CSK Team use K&N Engineering Oil Filters (HP-5001) every time they race. “The thick canister walls on the K&N Filters have extra strength and durability,” said Worsham. “It reduces the risk of damage from debris on the race track. We wouldn’t dream of entering a race without K&N Filters.”

Follow Del Worsham 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.

K&N Releases New Drycharger Filter Wrap For Round Tapered Air Filters

Feb 7, 2008

Filter Wrap DryChargerRU-2590DK

When selecting a universal air filter, not only are its size and airflow important, the location the filter is mounted is important as well. The filter's location may expose it to unusually high levels of dust, tire spray, or even splashes of water. One way to help shield the filter from these elements is to use a DryCharger filter wrap.

K&N has DryCharger filter wraps available that extend the length between air filter cleaning. Part number RU-2590DK for example fits K&N's round tapered universal air filter part number RU-2590 , as well as other air filters with a 5 3/8" base diameter, 4 3/8" top diameter, and a height of 7". The RU-2590DK is made of a polyester mesh material with uniform micron sized pores which stops dirt and dust particles as small as 0.005" (127 microns) before they reach the K&N air filter. The RU-2590DK, like other K&N DryCharger filter wraps, is treated with silicone so it repels water. The RU-2590DK will repel water for up to one year, and can be easily cleaned by using K&N air filter cleaner. The RU-2590DK DryCharger is a great way to extend the service interval of your K&N universal air filter and protect it from the elements while adding negligible restriction.

K&N DryCharger filter wraps are available in many shapes, sizes and colors. Use K&N's search by dimension to find the right size filter wrap for your clamp-on universal air filter. To find a dealer in your area use our Dealer Search. Use our Application Search to find other K&N products for your vehicle.

Best in the Desert Parker 425 Race Victory for Curt LeDuc

Feb 6, 2008

Off-road racer Curt LeDuc drove his ROCKSTAR Energy Drink/Toyo Tires/Skyjacker Ford truck with K&N Engineering products to victory in the Parker 425.

Off-road racer Curt LeDuc

LeDuc won the 8000 Truck Class in the Parker 425

The action filled weekend started in front of the Parker Area Chamber of Commerce in Parker Arizona and ended at the Blue Water Resort and Casino around 425 sandy miles later.

Curt LeDuc's Skyjacker with K&N oil and air filters

LeDuc competed against a record number of entries in the Parker 425

LeDuc competed against record number of entries in the Parker 425

The Best in the Desert sponsored race featured trucks, SUVs and buggies competing under grueling conditions. There were a record number of entries, 310, but only 81 were able to finish the race. LeDuc shared driving duties with sons Todd and Kyle to take first in the 8000 Truck Class.

“The ground was really wet,” said LeDuc. “This had a big effect on the race and the cars were getting beat up. The drive shaft hit a rock at mile ten, but we had a spare and did not have any more trouble during the eight hour three lap race.”

LeDuc passed nearly fifty vehicles during the first lap and handed over driving duty to his youngest son Kyle who continued the LeDuc family tradition. In the last lap older brother Todd took over and made it a family victory.

“K&N is one of our sponsors and we wanted to start off the year on the right foot,” said LeDuc. “We use K&N oil and air filters. One of the biggest advantages of the K&N oil filter is how it handles cold and heat with the deserts changing temperatures. It performed flawlessly under extreme conditions when we staged in the early morning and continued performing under the heat of the race day. We did not have to change the K&N air filter during the race.”

LeDuc’s next race is the Terribles Town 250 at Nevada in April.

Follow the LeDuc Team 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.

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