K&N 63-1127

Intake Kits > Performance Intake Kit
List Price: $527.30
Your Price: USD $474.57

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The K&N 63-1127 AirCharger air intake system replaces the restrictive factory air filter and air intake housing in some Honda TRX450R 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 63-1127 air intake comes with a black rubber 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 tube accommodates the factory 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 and a 10 millimeter wrench. 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
  • Not legal for highway use in states adopting California emission regulations
  • Washable and reusable air filter
  • Replaces entire factory air intake system

Product Specifications

Estimated Horsepower Gain3.03 HP @ 6200 RPM
Air Filter ColorRed
Air Filter Height5.5 in (140 mm)
Air Filter Large End Diameter6 in (152 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included3
Couplers Included1
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
Product Box Height8.5 in (216 mm)
Product Box Length18.25 in (464 mm)
Product Box Width14.5 in (368 mm)
Product Style63 Series Aircharger Kits
Replacement FilterRU-4960XD
Street Legal In All US States No
TUV Approved (Europe)No
Weight6.6 lb (3 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

Customer Feedback

Be the first to review part 63-1127
It's the best air filter. I use this filter (RU-4740) on my Honda TRX450r for many years, great quality. Thanks

this is the BEST stock style filter why do I say that? I have changed many Honda filters on the firewall 1) strong steel body. heavier and thicker metal than auto chains/discount stores. 2) the threads on the input and output are machined very cleanly. 3) durable epoxy coating, thicker than all oem & cheapos. wont rust up easily so why did I take so long the try it? it was really never in stock at auto chain stores. so I decided to order online. im NEVER GOING BACK TO regular replacement fuel filters on my acuras/Hondas don't believe me, try it yourself what more can you ask for? LOWER PRICED than regular filters(and oem), BETTER PERFORMANCE ALSO

Shur Yang
Eastside St.Paul, Minnesota
I use K&N filters in all my vehicles. I had recently purchased a 2015 Ram 3500. Bought the K&N filter for that and noticed an immediate increase in fuel mileage and performance due to better airflow through the K&N filter. & I have K&N on both of my Harley's and my wife's Honda Prelude

Spring Hill, Florida