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63-1124
 
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The K&N 63-1124 AirCharger air intake system replaces the restrictive factory air filter and air intake housing in some Kawasaki KFX450R models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your engine to inhale a larger amount of air than the factory air filter assembly. More air means more usable power and acceleration throughout the engine’s RPM range. The 63-1124 air intake comes with a chrome topped K&N high-flow air filter and a heat shield that installs into the previous air box space. Air is directed through an aerodynamically engineered intake tube into the engine’s throttle body for a guaranteed power gain. The air intake system accommodates the factory air temperature sensor and crank case vent hose. The oversized cone shaped air filter comes with a water repellent DryCharger filter wrap to protect the filter from moisture. This air intake is relatively easy to install usually in 90 minutes or less using existing factory mounting points. The tools needed are a couple of screwdrivers, a ratchet set, needle nose pliers and several wrenches. This air intake cannot be sold in California. It is not legal for use in California or other states adopting California emission standards.

More Info on K&N Air Intakes for Sport ATVs
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Free-flowing high density polyethylene tube
  • Easy to install, usually in 90 minutes or less
  • Replaces entire factory air intake system
  • Not legal for highway use in states adopting California emission regulations
  • Washable and reusable air filter

Product Specifications

Estimated Horsepower Gain3.36 HP @ 7100 RPM
Air Filter ColorRed
Air Filter Height6.5 in (165 mm)
Air Filter Large End Diameter5.5 in (140 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included1
Intake Pipe Color / FinishBlack
Intake Pipe PortsAll intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter IncludedMass Air Flow Sensor Adapter Included When Required
Product Box Height12.5 in (318 mm)
Product Box Length20.25 in (514 mm)
Product Box Width12.25 in (311 mm)
Product Style63 Series Aircharger Kits
Replacement FilterRC-4630XD
Street Legal In All US States No
TUV Approved (Europe)No
Vacuum Tubing IncludedNo
Weight6.3 lb (2.9 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.


Customer Feedback


Let's face it, every company may have a product that breaks or doesn't perform as originally intended.  How that company responds to the product failure and supports the customer in resolving the issue is what defines their future business and success, in my opinion.  

I recently experienced an issue while trail riding on my KFX450R and had the air box mounts snap off.  I limped back to camp, rigged up some zip ties as a temporary solution, and promptly fired off an email to K&N to request support the next day.

I was pleasantly surprised to receive resolution after only a 20 minutes email exchange forwarding Robert Knudsen a couple of pictures of the broken box.  Robert promptly set up a full exchange kit (not just the damaged box and filter components) and it arrived within 3 business days.

This is the kind of support that all companies should strive to deliver.  Price for performance is one consideration, but quality support of that product is what keeps me a loyal customer to K&N for all of my vehicle needs.

Thanks for thinking about your customer first, K&N, and understanding that your bottom line is dependent upon repeat customers and knowing we will share our good news stories with friends, neighbors and though testimonials like this to help you thrive.
Josh Bacon, Greater Atlanta, Georgia area
Although this filter was not the one K&N recommended, it is the one that fits my Kawasaki Ninja 2004 perfectly. I've never had a problem with a K&N filter. You guys rock!
Fred, Dayton, Ohio
RC-2340 Works on Kawasaki Vulcan VN750 87-06 Ear shave MOD
Mike, Arizona