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Boost Power on your Harley® Twin Cam 96 or Twin Cam 103 with a K&N AirCharger

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K&N 63-1131P air intake for Harley-Davidson motorcycles

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.

K&N 63-1131P air intake installed on Harley-Davidson

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:

K&N 63-1131P air intake parts included

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:

2015 HARLEY-DAVIDSON FLTRXS ROAD GLIDE SPECIAL 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLTRX ROAD GLIDE 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLRT FREEWHEELER 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHXS STREET GLIDE SPECIAL 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHX STREET GLIDE 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHTKL ULTRA LIMITED LOW 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHTK ULTRA LIMITED 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHTCUL ELECTRA GLIDE ULTRA CLASSIC LOW 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHTCU ELECTRA GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2015 HARLEY-DAVIDSON FLHR ROAD KING 103 CI - w/Lower Fairings
2014 HARLEY-DAVIDSON FLHX STREET GLIDE 103 CI - w/Lower Fairings
2014 HARLEY-DAVIDSON FLHTK ELECTRA GLIDE ULTRA LIMITED 103 CI - w/Lower Fairings
2014 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA 103 CI - w/Lower Fairings
2014 HARLEY-DAVIDSON FLHTCU ELECTRA GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2014 HARLEY-DAVIDSON FLHR ROAD KING 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLTRX ROAD GLIDE CUSTOM 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLTRU ROAD GLIDE ULTRA 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHX STREET GLIDE 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHTK ELECTRA GLIDE ULTRA LIMITED 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHTCU ULTRA CLASSIC ELECTRA GLIDE 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHTC ELECTRA GLIDE CLASSIC 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHRC ROAD KING CLASSIC 103 CI - w/Lower Fairings
2013 HARLEY-DAVIDSON FLHR ROAD KING 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLTRX ROAD GLIDE CUSTOM 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLTRU ROAD GLIDE ULTRA 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLHX STREET GLIDE 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLHTK ELECTRA GLIDE ULTRA LIMITED 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLHTCU ELECTRA GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLHTC ELECTRA GLIDE CLASSIC 103 CI - w/Lower Fairings
2012 HARLEY-DAVIDSON FLHR ROAD KING 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLTRX ROAD GLIDE CUSTOM 96 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLTRU ROAD GLIDE ULTRA 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHXXX STREET GLIDE TRIKE 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHX STREET GLIDE 96 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHTP ELECTRA GLIDE POLICE 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHTK ELECTRA GLIDE ULTRA LIMITED 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHTCU ULTRA CLASSIC ELECTRA GLIDE 96 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHTC ELECTRA GLIDE CLASSIC 96 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHRC ROAD KING CLASSIC 103 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHR ROAD KING 96 CI - w/Lower Fairings
2011 HARLEY-DAVIDSON FLHP ROAD KING POLICE 103 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLTRX ROAD GLIDE CUSTOM 96 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHXXX STREET GLIDE TRIKE 103 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHX STREET GLIDE 96 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHTP ELECTRA GLIDE POLICE 103 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHTK ELECTRA GLIDE ULTRA LIMITED 103 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHTCU ULTRA CLASSIC ELECTRA GLIDE 96 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHTC ELECTRA GLIDE CLASSIC 96 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHRC ROAD KING CLASSIC 96 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHR ROAD KING 96 CI - w/Lower Fairings
2010 HARLEY-DAVIDSON FLHP ROAD KING POLICE 103 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLTR ROAD GLIDE 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHX STREET GLIDE 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHTCUTG TRI GLIDE ULTRA CLASSIC 103 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHTCU ULTRA CLASSIC ELECTRA GLIDE 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHTC ELECTRA GLIDE CLASSIC 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHT ELECTRA GLIDE STANDARD 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHRC ROAD KING CLASSIC 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHR ROAD KING 96 CI - w/Lower Fairings
2009 HARLEY-DAVIDSON FLHP ROAD KING POLICE 103 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLTR ROAD GLIDE 96 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLHX STREET GLIDE 96 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLHTCU ULTRA CLASSIC ELECTRA GLIDE 96 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLHTC ELECTRA GLIDE CLASSIC 96 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLHT ELECTRA GLIDE STANDARD 96 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLHRC ROAD KING CLASSIC 96 CI - w/Lower Fairings
2008 HARLEY-DAVIDSON FLHR ROAD KING 96 CI - w/Lower Fairings

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.


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K&N Engineering in Riverside California is the world's leading manufacturer of washable performance air filters and air intake systems. K&N invented the reusable high flow cotton air filter in 1969 and has been perfecting the technology ever since. K&N is a world class filtration company selling air filters, oil filters, and intakes in over 50 countries. K&N sells over 5,000 products designed for cars, trucks, motorcycles, engines, and industrial applications. From their Million Mile Warranty to their Consumer Protection Pledge, K&N stands behind their products and their consumers 100%. The distinctive K&N logo represents performance from one of the original performance companies. For more information, visit knfilters.com.