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A K&N automotive air filters diesel air filter or diesel air intake can improve diesel performance while working, towing, or every day driving in your diesel powered pickup truck

Replacing the stock auto air filter with a K&N diesel filter, like the K&N diesel air filter for 2003-2009 Dodge 2500 and 3500 Cummins 5.9L diesel models, can improve diesel performance

It wasn’t long ago that the term “Diesel Performance” would have been considered an oxymoron. A diesel engine has several advantages over a typical gasoline powered internal combustion engine but until recently performance was never considered one of those advantages. In the automotive world diesel engines have been known for their fuel economy, torque production, and longevity. In Europe diesel powered passenger cars are popular because a diesel engine will burn less fuel than an equivalent gasoline engine doing the same amount of work. Heavy duty diesels, such as semi-trucks, busses, and recreational vehicles have also exploited the fuel efficiency advantages of the diesel engine, but because of the distances these vehicles drive the ability of a diesel engine to last twice as long as a gasoline engine plays a major factor in choosing a diesel power plant.

Modern advances in diesel performance technology have made diesel engines widely accepted as a positive alternative to gasoline burning engines. Gone are the days when a diesel was looked down upon for being slow, noisy, and dirty. Improvements in direct injection and forced induction have helped cure the arguments for diesel engines being slow. The issue of diesel noise, or “diesel clatter”, has been addressed with the improvements in direct injection, and electronic engine controls, as well as higher-quality diesel fuels. Tail pipe emissions from diesel powered vehicles have been improved in modern diesel engines by reducing waste fuel. It’s the wasted fuel in a diesel engine under load that produces black smoke, and this has been nearly eliminated with modern electronic engine and emissions controls.

Diesel performance can be further improved by installing a K&N diesel air intake system such as number 77-3063KTK as shown on this 2004 Chevrolet Kodiak CK4500 6.6L V8 Diesel

To keep inlet air temperature within factory specifications the K&N diesel air intake for 2010-2012 Dodge Ram 2500 and 3500 Cummins 6.7L diesel models uses an enclosed air filter box

While modern advancements in diesel technology have made a world of difference, these same advances have made improving diesel performance more difficult. The basic principal behind increased diesel performance is to increase air in the cylinders allowing more fuel to be burned and more horsepower and torque to be produced. Forced air induction, like that provided by superchargers and turbochargers, accomplishes the task of increasing air pressure loaded into the cylinder. However, most diesel engines are already equipped with forced induction from the factory.

That’s where K&N air filters steps in with a diesel air filter or diesel air intake to improve diesel performance over the factory design. Most diesel cars and trucks are equipped from the factory with restrictive disposable air filters which are housed in a confined factory air filter box. After that, the air is routed through convoluted factory air intake tubing which disrupts, and can even impede, airflow into a diesel engine. By eliminating some or all of these points of restriction with a K&N diesel air filter, or diesel air intake system, K&N Air Filters is able to improve diesel performance by increasing horsepower and torque output.

K&N performs diesel air filter and diesel air intake testing to ensure a K&N diesel filter provides engine protection, improved diesel performance, and operates within factory specifications

K&N designs a diesel air filter to higher specifications than a standard K&N auto air filter with deeper pleats for more surface area and more layers of cotton in different grades

Eliminating the restrictive disposable diesel air filter, constricted factory air filter box and the convoluted air intake tubing will reduce restriction and improve efficiency, but that is just part of the diesel performance equation. K&N engineers pay special attention to air temperature as it travels into the engine. Because cooler air has more mass it promotes more efficient combustion. The ability of an engine to work efficiently is essential to making power and improving diesel performance. The engine control unit (ECU) in modern diesel pickups and cars can adjust engine performance as air temperature increases forcing the engine to run more conservatively and make less power. This means diesel air filter and diesel air intake placement is important to assure proper flow, temperature, and quality of incoming air for peak diesel performance.

When K&N engineers design a diesel air filter or diesel air intake much consideration is put into improving diesel performance without sacrificing engine protection with a K&N diesel filter. Normally a K&N diesel air filter is built to higher specifications than our standard automotive air filters. The typical K&N diesel air filter is made with deeper pleats for more surface area and more layers of cotton in different grades to achieve higher levels of filtration efficiency. K&N performs filtration efficiency testing following the internationally recognized ISO 5011 protocol to guarantee that our air filters will provide high airflow without sacrificing engine protection..

Diesel air filter filtration efficiency isn’t the only aspect of engine protection. A K&N diesel air filter, as well as a K&N diesel intake, undergoes airflow, dynamometer, and over-the-road testing to ensure that our product will improve diesel performance without causing drivability issues. Modern diesel engines are required by federal law to run within such narrow operating parameters that K&N engineers must be careful to increase diesel performance without upsetting electronic engine controls. K&N does its homework to ensure a K&N diesel air filter or diesel air intake system can provide improved diesel performance without the need for further modifications.

K&N has been committed to improving diesel performance since the 1990’s when diesel engines became popular in full-size pickup trucks. A listing of K&N diesel air filter and diesel intake offerings can be found on the Diesel Filter Performance - Air Intakes & Air Filters page, or use the K&N product lookup tool to find a diesel air filter, or diesel air intake for your vehicle.

K&N automotive filters proudly supports 2014 Woodhull Raceway Crate Sportsman Track Champion Russell Morseman III and the number 44 Morseman’s Racing Dirt Modified Car

Following in the footsteps of his father, Russell Morseman the third began racing go-karts at the age of sixteen. Russ continued karting for four years before building a Street Stock racecar. After racking up multiple track championships in the Street Stock class Morseman decided to move up to a Dirt Modified car where has continued to be successful.

Russ Morseman depends on K&N air filters, oil filters, crankcase breather filters, fuel filters, custom air cleaners, and more when on the race track and for his personal street vehicles

Of the 2014 race season Morseman said “It’s been an up and down year but all in all a great year.” Out of eighteen races in his number 44 Dirt Modified car, Morseman stood on top of the podium for two feature main victories and had five heat race wins. The vast majority of the season saw Morseman finish within the top five. Consistency is the key to winning championships and making the top five in fifteen races was the kind of consistency Morseman needed to capture the 2014 Woodhull Raceway Crate Sportsman Track Championship.

Consistency in racing cannot be achieved without proper maintenance, preparation, and top-notch products. Russ Morseman depends on K&N air filters, oil filters, crankcase breather filters, fuel filters, custom air cleaners, K&N cleaning products, and more both on the track and for his street vehicles. “K&N filters are hands down the best filter on the market. I have never had a part failure due to one of their filters. I have K&N filters and intakes on all the cars I own.”

K&N believes in supporting up and coming racers and grassroots motorsports. K&N is proud to sponsor Morseman’s Racing and the number 44 Dirt Modified Car. Be sure to keep an eye on Russell Morseman the third as he hopes to one day move up to the NASCAR series. Of his future Morseman said “My goal is to get on some asphalt. I want to run in the NASCAR K&N Pro Series East too. We will continue to take it one step at a time. So far everything is working according to plan."

Austin Hill drove his A&D Welding/Don Rich Ford race car to a decisive victory 1.023 seconds ahead of second place in the Kevin Whitaker Chevrolet 140 race in Greenville, South Carolina

Austin Hill number 22, Cameron Hayley number 98, and Gray Gaulding in the number 20 Krispy Kreme Doughnuts Chevrolet represent the top three finishers at Greenville Pickens Speedway

Ben Rhodes came into the Kevin Whitaker Chevrolet 140 race at Greenville Pickens Speedway knowing he must finish at least thirteenth in order to secure his first ever NASCAR K&N Pro Series East championship. Rhodes had the fastest car in qualifying; winning his sixth 21 Means 21 Pole Award presented ty Coors Light, and started the race from the pole position.

With so much pressure riding on this race, Rhodes anticipated the start and was consequently black flagged for jumping the race’s initial start. NASCAR officials instructed Rhodes to serve a pass through penalty. Luckily Rhodes was able to stay on the lead lap and would spend the remainder of the race working his way back toward the front of the pack. Rhodes would finish the Kevin Whitaker Chevrolet 140 well ahead of thirteenth place with a solid fourth place finish. “I put myself in a really bad position early on, made a mistake and went to the back, and had to focus a little big on points racing and get myself up there,” said Rhodes.

Ben Rhodes fought his way up to fourth place after a violation on the initial race start and secured the NASCAR K&N Pro Series East championship title with one race still remaining in 2014

Austin Hill, a NASCAR Next driver, celebrates his first NASCAR K&N Pro Series East win of the 2014 season at Greenville Pickens Speedway giving Hill two NKNPSE career victories

NASCAR Next Driver Austin Hill earned his first NASCAR K&N Pro Series East victory of the 2014 season and the second win of his career. Hill led 58 laps in the number 22 A&D Welding/Don Rich Ford car and did all he could to make it out front. Austin Hill, who qualified fifth, was running in third at the 70 lap halfway break point. “I told the guys, this 20 (Gaulding) and this 98 (Hayley) have a real good Hot Rod. They’re able to get off the corner a lot better than I am, and they’re beating me down the straighaway,” said Hill. During that break point the A&D Welding/Don Rich Ford crew made some adjustments to the number 22 car. “During that that halfway break, I came in and said, ‘guys we’re going to have to take a real big swing at it if we’re going to have a shot at winning.’ And they did. They had a really big swing at it, and once they did I took off,” recalled Hill.

Austin Hill powered to the lead on lap 83 but a caution on lap 124 bunched the field again. “When we had that caution, I was a little bit worried,” said Hill. Hill managed to pull away on the restart beating second place finisher Cameron Hayley to the checkers by 1.023 seconds. Afterward Hill said “When we went back to green, and I saw (Hayley) getting smaller and smaller in my window, I knew we had a really good car.” Cameron Hayley brought the number 98 Cabinets by Hayley Chevrolet across the line in second place and Gray Gaulding drove the Krispy Kreme Doughnuts Chevrolet home to round out the podium finishers.

Ben Rhodes has clinched the NASCAR K&N Pro Series East championship with an overwhelming points lead over Cameron Hayley. Hayley leads Brandon Jones by just twenty points. Jones is just two points ahead of Gray Gaulding who is only four points ahead of Jesse Little. While Rhodes may have clenched the championship, second and third places could still be decided in the season finale NASCAR K&N Pro Series East race at the famous Dover International Speedway.

Austin Hill hoists the massive Kevin Whitaker Chevrolet 140 race winner trophy over his head in victory lane at the ½ mile semi-banked oval of Greenville Pickens Speedway in South Carolina

Ben Rhodes won his sixth 21 Means 21 Pole Award presented ty Coors Light for having the fastest lap time during qualifying but a race start violation had him battling back toward the front

It would probably surprise a lot of people to read that Japan’s first full-size pickup truck, the Toyota Tundra, is actually built in the United States. The same applies to Toyota’s full-size SUV offering, the Toyota Sequoia. When the Tundra was released in 2000, it signaled another first for Toyota, which was offering a V8 engine in a truck. The Toyota Tundra, and Tundra-based Sequoia, has become exceedingly popular with consumers needing a full-sized truck keeping vehicle sales at or near production capacity.

The replacement K&N air filter, number 33-5017, will fit the stock air filter box of 2014-2016 Toyota Tundra and Sequoia models equipped with either the 5.7L or 4.6L V8 engine

The 2014 model year Tundra and Sequoia received a facelift and other changes while carrying over previous engine options. The changes my appear skin deep, however K&N engineers had to design a K&N washable air filter to fit the redesigned stock air filter box of 2014-216 Toyota Tundra andToyota Sequoia models with a 4.6L or 5.7L V8 engine.

K&N has built a world renowned reputation with its reusable air filter technology. However, that same high-flow cotton filtration technology means that a K&N air filter provides less restriction than typical paper air filters. Reducing restriction can increase the efficiency of the combustion process. Allowing an engine to breathe easier can help a car or truck by freeing up horsepower and improving acceleration. Better acceleration and more power can come in handy while entering the highway, towing, and even during city driving. The simple drop in design makes a replacement K&N air filter an easy performance air filter upgrade.

Some might be worried that an increase in airflow comes at the expense of filtration efficiency and engine protection. K&N performs filtration efficiency testing following the internationally recognized ISO 5011 protocol to guarantee that our air filters will provide high airflow without sacrificing engine protection. K&N makes this testing available on our website to help dispel the myth that a K&N air filter could allow engine damage.

K&N stock replacement air filters for street vehicles are covered by our famous K&N Million Mile Limited Warranty® and will be the last air filter your truck or SUV will need. Replacement K&N air filter 33-5017 is designed to fit the stock air filter box without modification in the following Toyota Tundra and Toyota Sequoia models:

Flow Chart for K&N 2014-2016 Toyota Tundra V8 4.6L, 5.7L and Sequoia V8 with a 5.7 liter engine Air Filter 33-5017

2016 TOyota Tundra 5.7L V8 F/I
2016 Toyota Tundra 4.6L V8 F/I
2016 Toyota Sequoia 5.7L V8 F/I
2015 TOyota Tundra 5.7L V8 F/I
2015 Toyota Tundra 4.6L V8 F/I
2015 Toyota Sequoia 5.7L V8 F/I
2014 Toyota Tundra 5.7L V8 F/I
2014 Toyota Tundra 4.6L V8 F/I
2014 Toyota Sequoia 5.7L V8 F/I

Made from cotton instead of paper, this air filter never needs to be replaced. 33-5017 will require cleaning every 50,000 miles under normal highway driving conditions. A K&N air filter can be considered the best car air filter for 2014-2016 Toyota Tundra and Toyota Sequoia models with a 4.6L or 5.7L V8 engine. Since part number 33-5017 never needs to be replaced, over time it will pay for itself and because it can typically go 50,000 miles without service, it will also save time.

For all K&N Toyota Tundra and Sequoia air filters visit the Toyota Tundra Air Filters and Toyota Sequoia Air Filters pages on KNFilters.com.

Greg Pursley started the Bakersfield 150 presented by GPS NASCAR K&N Pro Series West race from the pole position and led 128 of 150 laps at Kern County Raceway Park

Bakersfield, California, located halfway between Los Angeles, Calfiornia and Fresno, California, is situated at the southern end of California’s rural San Jaoquin Valley. While the area is suitable for growing a wide variety of crops it is still considered a desert climate and triple digit temperatures are the norm during summer months. Despite the heat, NASCAR K&N Pro Series West teams and fans packed the state-of-the-art facility at Kern County Raceway Park.

Jesse Little took the lead in the number 97 NASCAR Technical Institute Chevrolet on lap 82 putting a one second gap on the field until a restart brought the pack together again

Several NASCAR K&N Pro Series West drivers had high expectations heading into the 11th race of the 2014 West Series season at Kern County Raceway Park in Bakersfield, California. Greg Pursley, who drives the number 26 Gene Price Motorsports Chevrolet, was the only NASCAR K&N Pro Series West driver to have won at KCRP with two wins to his name. Construction of Kern County Raceway Park was completed just last year. David Mayhew, fresh off his NKNPSW win in Monroe Washington, also felt confident coming into this race. Mayhew is a Bakersfield resident and has 20 feature event wins at KCRP in various racing classes. Jesse Little, son of former NASCAR Cup Series driver Chad Little, normally competes in the NASCAR K&N Pro Series East series but made the trip to Bakersfield, California because he enjoys the track and had a top-five finish at the Kern County race in May.

A caution on lap 148 of the Bakersfield 150 presented by GPS forced a restart where Greg Pursley would receive a black flag sending him back to ninth and giving Dylan Lupton the win

High day-time temperatures meant track conditions would change when the sun set behind the grandstands at Kern County Raceway Park. Teams and drivers anticipated the track to change and attempted to set up their cars accordingly. Heading into qualifying Greg Pursley, who has won twice at Kern County Raceway Park, said “We’re running the same set up as the last Bakersfield race in May.” Whatever the Gene Price Motorsports team did to their car in May worked again, as Greg Pursley would come out of qualifying with the fastest lap time of 18.255 seconds. David Mayhew, who knows this track like the back of his hand qualified third behind Brandon McReynolds. Mayhew said “We fixed our brakes before qualifying. I wasn’t used to how well the car stopped. This hurt us a little.”

Dylan Lupton celebrates his second NASCAR K&N Pro Series West Race victory by doing a burnout in the number 9 Sunrise Ford of Fontana Fusion on the Kern County Raceway Park infield

There was a mandatory pit stop scheduled for the halfway point of the Bakersfield 150 presented by GPS. Crew members could add fuel and make adjustments, but could not install fresh tires. This meant that tire conservation during the entire 150 laps of the half-mile oval would play a role in deciding the race winner. Greg Pursley, in the # 26 GPM Chevy, knew this and planned to keep an eye on the other drivers watching how hard they would drive. Pursley has fifteen years of auto racing experience following a transition from motorcycle racing and is a veteran driver when compared to the younger drivers of the NKNPSW series.

David Mayhew, a Bakersfield, California resident, felt confident going into the NASCAR K&N Pro Series West race at Kern County Raceway Park but was struck with mechanical problems

Pursley’s experience would help him dominate the Bakersfield 150 presented by GPS leading 128 of 150 laps. Pursley briefly surrendered the lead to Jesse Little on lap 82, only to regain it again after a restart on lap 108. Little said “I felt like I just pushed too hard after I took the lead from Greg. You could tell that he’s the veteran and just saved his stuff more.” Little faded back a few positions as drivers like Dylan Lupton, who started ninth, worked their way toward the front. Lupton found his way into second and was gaining on Pursley cutting his lead from two seconds down to just half of a second.

Greg Pursley won the 21 means 21 presented by Coors Brewing Co. Pole Award for earning the fast qualifying time at Kern Country Raceway Park in the Bakersfield 150 presented by GPS

On lap 148 Greg Pursley expected to come around the front straight to see a white flag signaling the final lap but a yellow caution flag was waived instead. This fateful caution meant the final lap came and went under yellow with a green and white checker two lap shootout to decide the race. The restart must have been nerve racking for race leader Greg Pursley. He took off before the restart point and was subsequently black flagged for a restart violation. This handed the Bakersfield 150 presented by GPS victory to Dylan Lupton in the number 9 Sunrise Ford. Lupton described that final restart by saying “There’s a restart point and it looked like Pursley jumped it by about a car-and-a-half or two car lengths early. That gave us the win right there, but, I think if we would have battled, we could have also contended for the win.” The penalty dropped Pursley to ninth place.

Brandon McReynolds was a mere .269 seconds behind Dylan Lupton at the line and Jesse Little would bring it in for a solid third place finish. Lupton’s Sunrise Ford teammate James Bickford came in fourth and Thomas Martin drove the MedActive Chevrolet across the line in fifth place. The number 17 MMI Services Chevrolet driven by David Mayhew suffered power-steering problems during the race. The team was forced to pit and cut the power steering belt to maintain steering consistency. This put Mayhew down a lap and he finished in tenth place.

Greg Pursley continues to lead the NASCAR K&N Pro Series West championship points with Dylan Lupton only fifteen points behind. Brandon McReynolds is in third trailing Lupton by just eleven points. With the points standings this close the lead can still change in the three races remaining in the 2014 season. The next race will be at Miller Motorsports Park for the Utah Grand Prix road course race.