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The UNKNOWN team leaving their mark on the pavement

UNKNOWN Industries? With millions of YouTube views and hundreds of closed-course stunt demonstrations, one has to question the accuracy of the company’s moniker. While the name is certainly an understatement, there is nothing understated about a performance by the Harley-Davidson® freestyle stunt team. UNKNOWN has become world-renowned for its riders’ highly technical and highly entertaining ripping and thrashing of their behemoth Harleys.

Co-owner and Team Manager John Oakes is quick to sing the praises of the riders that fuel the UNKNOWN brand. Oakes calls them, “A new breed of Harley riders who push the limits of their motorcycles and themselves.” Certainly, a motorcycle performance and stunt company is only as good as its riders and UNKNOWN has some of the best. Before they had ever met, co-founders Nick Leonetti and Buddy Suttle knew of each other through their respective racing and dirt riding reputations. When they finally came face-to-face, creative sparks flew (literally) and the rest is history. The duo’s reputation has grown in like proportion to the creativity of their stunts. Suttle has been featured on the cover of Baggers Magazine and Leonetti has graced the cover of Hot Bike Magazine. It’s hard to stay “unknown” with that kind of high-profile recognition.

Nick Leonetti showing the clean underside of his Harley

Rounding out the talented lineup are three stunting phenomes who all cut their teeth in motocross and/or BMX. Kade Gates, who became a fan of UNKNOWN watching YouTube videos, now rides his Harley FXR alongside the founders. Jeff Palkiewicz traces burned rubber designs on the asphalt on his Dyna FXDXT aptly named “Kentucky Disco Biscuit.” Then there is Logan Lackey who is the talented son of famed motocross champion, Brad Lackey. Logan says, “I knew I wanted to be part of the UNKNOWN family from the first time we rode together.” All of the young guns of the UNKNOWN team share an all-consuming passion for taking their Harleys to the teetering edge of what is possible on bikes weighing in at nearly double that of modern sportbikes.

The company’s notoriety started with amazing live performances and those shows are still UNKNOWN’s foundation. The riders amaze fans at events ranging from NASCAR, the Sturgis Motorcycle Rally, Supercross, UFC, H-D® dealerships, X-Games, military bases, massive music festivals, the Hot Bike Tour, and various other events across the US. Anywhere adrenaline junkies gather there’s a good chance UNKNOWN Industries will be there as well. Audiences witness wheelies, burnouts, and metal-grinding stunts that are combined into an over-the-top, visceral rumble-fest.

Buddy Suttle modifying his rear fender the hard way

That live performance success has been parlayed by the team into Internet and media superstardom. The first 13 episodes of their Harley Wheelies YouTube series have garnered over 5 million views. The newly released YouTube miniseries titled The UNKNOWN Ride will certainly follow suit. The media frenzy doesn’t stop there. UNKNOWN riders have been featured in TV shows, music videos, TV commercials, and magazines. If that’s not enough, you can find UNKNOWN's second feature length movie, Into the UNKNOWN, on both DVD and iTunes.

Kade Gates heating rubber at an UNKNOWN show

Keeping UNKNOWN’s stable of Harleys protected and running strong is where K&N comes in. K&N’s sponsorship of the company goes beyond financial support. Oakes says, “All of the team riders run K&N air filters.” Interestingly, 3 of the 5 riders pilot early 90s FXRs. Those of you out there with the same bike have a multitude of K&N intake and filtration options. The filter that fits the stock 1992 FXR, as well as most other 90s Harleys, is the HD-1390. For a custom intake assembly, you can opt for something like the round RK-3911 or the teardrop RK-3912, both of which feature chrome covers. Of course all K&N intake options are designed for increased horsepower and highly effective filtration. There are high-quality K&N oil filter options for the bikes as well, such as the chrome KN-170C and the very cool, billet aluminum SS-171. If you ride just about any Harley, K&N has great filtration options for you.

In the end, I guess the only real “unknown” is what UNKNOWN Industries will dive into next in their quest for total world domination in the moto-entertainment industry. One thing is certain, take a look at one of their videos or attend a performance and you will never look at a Harley the same way again.

Reusable K&N Air Filter 33-2240 for 18 HP, 20 HP and 22 HP Briggs & Stratton Intek V-twin engines and more.

Briggs and Stratton is an American engine manufacturer located in Wauwatosa, Wisconsin. They are the largest manufacturer of air-cooled gasoline engines in the world. Briggs and Stratton engines are used in a variety of indoor and outdoor applications including lawnmowers, pressure washers and generators.

In order to maintain optimal performance, it is important to perform routine maintenance on your Briggs and Stratton engine. Part of this routine maintenance includes replacement of the dirty air filter. K&N offers reusable Briggs and Stratton air filters to help simplify the process. K&N small engine and light industrial air filters are designed with an oil free synthetic media that is easily washed and reused.

Back of K&N Air Filter for Briggs and Stratton riding lawn mowers and more.

Owners of the Briggs and Stratton 405700, Briggs and Stratton 406700 and Briggs and Stratton 407700 engines can upgrade to K&N reusable air filter 33-2240. This K&N Briggs and Stratton air filter eliminates the need for the pre-cleaner used with the stock filter. K&N air filters for Briggs & Stratton engines are ideal because they can be cleaned and reused over and over.

K&N air filter 33-2240 replaces Briggs & Stratton air filter 4209, Briggs & Stratton air filter 4223, Briggs & Stratton filter number 499486, Briggs & Stratton air filter 499486S, Briggs & Stratton 5063B air filter, Briggs & Stratton filter 5063D, Briggs & Stratton air filter 5063H, Briggs & Stratton 5069H filter, Briggs & Stratton air filter number 5069K, Briggs & Stratton air filter 695667 and the Briggs & Stratton 698754 air filter.

K&N air filter 33-2240 will also fit the John Deere Z425 equipped with the panel style air filter. These filters include the John Deere air filter GY20575, GY21056 and MIU11286.

For a full list of Briggs & Stratton air filters for light industrial equipment, visit the Air Filters for Briggs & Stratton page. To find air filters for other equipment or for a specific vehicle, simply use the K&N application search.

Thanks to the innovative design of the 63-1131P air intake, K&N guarantees that this kit will increase the power to the wheels of your H-D motorcycle.

Big "hogs" have been owning the road since the first V-Twin engine was introduced in 1909. These legendary motors have seen many incarnations: Flathead, Knucklehead, Panhead, Shovelhead, Evolution, and Twin Cam 88. The latest generations 2008-2011 Harley-Davidson Twin Cam 96 V-Twin and the 2009-2015 Harley-Davidson Twin Cam 103 V-Twin contain numerous innovations that are designed to provide the low end torque that Harley's are known for. Lightweight pistons allow the engine to create power faster, while balance shafts help to offset vibrations on ridged mount applications like the Harley Softail. But it doesn't matter which H-D® model you ride, you can boost the horsepower and torque by simply adding a K&N 63-1131P AirCharger performance intake system.

The 63-1131P air intake kit includes everything you need to give your Harley extra power today. All you need to provide are basic hand tools and you can be down the road in an hour and a half or less.

Each Harley-Davidson spins that drive belt by filling its twin-cylinders with a combination of gasoline and air. Once this power mix is ignited by the spark plugs, the resulting explosion pushes the piston downward, turning the crankshaft, and ultimately the back wheel. But the gasoline has to have oxygen in order to burn in that explosion. To facilitate this, air is pumped to the cylinders through the intake system, which is located behind that chrome air cleaner cover on the side of your V-Twin engine. However, the iconic styling actually limits the volume of air that's able to enter the system, and that restricts the amount of horsepower and torque that your Harley Twin-Cam engine makes. The K&N 63-1131P AirCharger performance intake system takes care of this problem by opening up a direct airflow path to the cylinders. Plus, the heat resistant chrome finish blends with the look of any Harley Twin Cam 96 or Twin Cam 103.

But of course, talk is meaningless without the proof to back it up. So to verify the performance of every K&N cold air intake, we conduct before & after dyno tests of the vehicles each system was designed for. Since the K&N 63-1131P AirCharger performance intake system will work on both the Harley-Davidson Twin Cam 96 V-Twin and Harley-Davidson Twin Cam 103 V-Twin, we tested a 2015 Harley-Davidson Electra Glide 103 ci, and found that it made 68.20-hp and 87.77 lb-ft at the rear wheel with the Harley-Davidson factory air intake and 75.00-hp/94.81 lb-ft after a K&N AirCharger intake was installed. That's an estimated increase of 6.80-hp and 7.04 lb-ft, which you'll certainly notice with a little throttle input.

Remember to take a look at all of the other motorcycle performance parts that K&N makes by using the search by vehicle tool, or find a local dealer with the K&N dealer locator tool.

Features & benefits of the K&N 63-1131P AirCharger performance intake system:

The polished 63-1131P air intake kit will match the polished look on most Harleys on the road.

• Designed for the Harley-Davidson Twin Cam 96 & Twin Cam 103
• Guaranteed to increase horsepower & torque
• Provides faster throttle response
• Improves engine sound
• Large-bore aluminum intake tube reduces airflow restrictions
• Billet aluminum mounting plate secures system to the engine
• Washable K&N performance air filter offers extended cleaning intervals
• Entire system can be installed in around 90 minutes
• Covered by the K&N 10-Year/Million Mile Limited Warranty

The K&N 63-1131P fits the following vehicles:

Not legal for sale or use on any pollution controlled motor vehicle in California or states adopting California emission procedures. See knfilters.com for CARB status on each part for a specific vehicle.

The K&N PF-4500 fuel filter features high capacity filter pleats, is 7.375-inches long, comes with an O-Ring, and is engineered to provide excellent fuel filtration.

One of the most powerful pickup trucks is the Dodge Ram. For example, the 2015 model's base engine was a 3.6-liter V6 that delivers 305-horsepower and 269 lb-ft of torque. The optional engines included a 3.0-liter V6 turbodiesel that generates 240-horsepower and 420-lb-ft of torque or a 5.7-liter V8 that produces 395-horsepower and 410-lb-ft of torque.

Rear-wheel drive was standard on the 2015 1500, but four-wheel drive was also available as an option. The standard truck also features coil springs, which reviewers said offered a "more comfortable and composed ride than most rival…" An adjustable air suspension that is capable of raising and lowering the truck was also available as an option.

The 2015 Ram 1500 can tow up to 10,450 pounds and haul up to 1,900 pounds when properly equipped. Journalists who test drove the pickup discovered that the diesel engine and V8 offer "ample power for towing…" and the available air-adjustable suspension limits squat when the truck is loaded down with a large payload or hooked up to a heavy trailer.

A quality, well performing fuel filter is essential in the performance of a vehicle like the Ram 1500 because it blocks dirt and debris particles from reaching the engine. If these rough grainy particles were not screened from the fuel system, they could cause rapid wear of the fuel pump and fuel injectors or could damage the engine.

To help assure that only fuel passes through the fuel system and reaches the engine of the 2014 and 2015 Ram 1500, K&N offers the K&N PF-4500 fuel filter. The cartridge fuel filter is built to withstand high flow rates and filtration capacity while offering outstanding fuel filtration. The high performance media is cellulose and glass that is engineered to trap contaminants including rust, dirt, scale, and any other foreign materials.

The diesel fuel filter is designed to replace the factory fuel filter and meets or exceeds OEM specifications. The filter is also backed by a 90-day replacement warranty for diesel fuel applications.

The K&N PF-4500 fuel filter is designed and engineered for the following vehicles:

2015 RAM 1500 3.0L V6 DIESEL
2015 DODGE 1500 3.0L V6 DIESEL
2014 RAM 1500 3.0L V6 DIESEL
2014 DODGE RAM 1500 PICKUP 3.0L V6 DIESEL

K&N 33-2399 Replacement Air Filter for the 2007-2009 Nissan 350Z and 2009-2017 Nissan 370Z.

The Nissan VQ Series V6 first debuted in 1994, and it was immediately praised for its high rpm power, and incredibly smooth operation. Several generations later, the Nissan VQ35HR debuted in the 2007 Nissan 350Z, and featured many high tech advancements. For example, a new Continuously Variable Valve Timing Control (CVTC) system provided better low-and-high rpm performance, and a special ladder frame was cast into the bottom of the engine block to reduce vibrations and friction as the motor spins toward the 7,500 rpm redline. The 2009-2017 Nissan 370Z received an even larger variant called the Nissan VQ37HR, which was more technically advanced and considerably more powerful. But no matter which you drive, a K&N 33-2399 Replacement Air Filter can help your Nissan VQ V6 to respond with more power, faster.

K&N 33-2399 Replacement Air Filters installed in the Infiniti version of the Nissan VQ.

The key to the performance of the Nissan 350Z/Nissan 370Z is fuel and airflow management. Using a series of sophisticated electronic controls, the Nissan VQ can instantly adjust its behavior to achieve better fuel economy at low rpm's, or better performance at higher rpm's. Maintaining airflow is critical to the performance, which is why both Z cars employ dual air boxes to maximize airflow to the engine. These air boxes are fitted with paper air filters that are intended to stop dirt from ever reaching the combustion chamber. However, that thick paper actually reduces the amount and velocity of air entering the system. Plus, all of that dirt collects on the surface of the filter, and will eventually restrict airflow even further.

To eliminate all of these problems, the K&N 33-2399 replacement air filter uses a number of design innovations. First of all, the filter media is made from a free-flowing cotton gauze material that is treated with a special blend of oil. That red oil makes the cotton fibers extremely sticky, which causes them to attract and trap dirt as air flows through the filter. This is called 'depth loading', because the dirt is stored inside of the filter, rather than on the surface. Once your filters need to be serviced, all you have to do is remove them from the air boxes, and clean them with the K&N air filter cleaning kit.

Thanks to the additional air volume, your Nissan VQ V6 is able to make more horsepower and torque at lower RPMs, which will significantly improve throttle response. The K&N 33-2399 Replacement Air Filter will also save you money, because you'll no longer have to buy those expensive OEM Nissan replacement air filters. In addition, all K&N filters are backed by the K&N 10-Year/Million Mile Limited Warranty, so the long term performance is literally guaranteed. To find a K&N dealer near you, use the K&N dealer locator tool.

Features & Benefits of the K&N 33-2399 Replacement Air Filter

• Designed to fit the 2007-2009 Nissan 350Z and 2009-2017 Nissan 370Z
• Designed to increase horsepower
• Designed to increase torque
• Allows the Nissan VQ to make more power at lower RPMs
• Sharpens throttle response
• Provides unrestricted airflow and superior filtration
• Does not affect ECU programming
• Will not void factory warranty
• Road Legal in All 50-States
• Provides unrestricted airflow and superior filtration
• Reusable K&N air filter can go up to 50,000 miles before cleaning is required (depending on road conditions)
• Direct replacement for an OEM Nissan VQ air filter
• Backed by the K&N 10-Year/Million Mile Limited Warranty
  

K&N Applications for 33-2399 Replacement Air Filter

2017 Nissan 370Z 3.7L V6 (2 Required)
2016 Nissan 370Z 3.7L V6 (2 Required)
2015 Nissan 370Z 3.7L V6 (2 Required)
2014 Nissan 370Z 3.7L V6 (2 Required)
2013 Nissan 370Z 3.7L V6 (2 Required)
2012 Nissan 370Z 3.7L V6 (2 Required)
2011 Nissan 370Z 3.7L V6 (2 Required)
2010 Nissan 370Z 3.7L V6 (2 Required)
2009 Nissan 370Z 3.7L V6 (2 Required)
2009 Nissan 350Z 3.5L V6 (2 Required)
2008 Nissan 350Z 3.5L V6 (2 Required)
2007 Nissan 350Z 3.5L V6 (2 Required)

You can view all the K&N performance products for any vehicle by using the Search by Vehicle tool and you can find a local K&N retailer by plugging your location into the K&N Dealer Search as well.