K&N 63-1124

Intake Kits > Performance Intake Kit
List Price: $489.75
Your Price: USD $269.99

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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 MaterialHigh-Density Polyethylene
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
Weight6.3 lb (2.9 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

Customer Feedback

Be the first to review part 63-1124
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
I use your products in everything I own and recommend them to everyone I know. I run oil & air filters in all my vehicles. Dodge Charger ,,07 vw rabbit , 2012 zx14r Kawasaki ,09gsxr 750 ,2010 Chevy Silverado I really get great performance out of your product and the quality is unmatched.

Eugene DeWitt
I purchased this filter for my 2000 Kawasaki EX-250. It fit perfectly and was easy to install. It makes an awesome intake sound now but it's still a 250 so it is as slow as ever I am definitley considering the same mod for my 1999 EX-250.

Marshall Munce
South Texas