K&N 63-6014

63 Series Aircharger Kits > Performance Intake Kit
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   13 Customer Reviews
List Price: $553.33
Your Price: USD $304.99

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The K&N AirCharger 63-6014 air intake system replaces your vehicle’s restrictive factory air filter and air intake housing. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your vehicle’s 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 63-6014 air intake comes with a chrome topped K&N high-flow air filter and a heat shield that mounts onto the inner fender. This allows cooler, denser air to be directed through a custom molded intake tube into the engine’s throttle body for a guaranteed power gain. The oversized air filter can be used for up to 100,000 miles before servicing is needed depending on driving conditions. This air intake is relatively easy to install requiring only pliers, a couple of screwdrivers, a socket set 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 Information on K&N AirCharger Air Intakes]
  • Guaranteed horsepower gain
  • Designed to improve throttle response and engine sound
  • Free-flowing high density polyethylene tube
  • Replaces entire factory air intake system
  • K&N Million Mile Limited Warranty
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less

Product Specifications

Estimated Horsepower Gain14.27 HP @ 5075 RPM
Air Filter ColorRed
Air Filter Height6.5 in (165 mm)
Air Filter Large End Diameter7.5 in (191 mm)
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
California RestrictedNot legal for sale or use in California
Clamp MaterialStainless Steel
Clamp StyleRegular
Clamps Included5
Couplers Included2
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
Oversize ShippingOS1
Product Box Height15.6 in (396 mm)
Product Box Length24.2 in (615 mm)
Product Box Width20.2 in (513 mm)
Product Style63 Series Aircharger Kits
Replacement FilterRF-1014
Street Legal In All US States No
TUV Approved (Europe)No
Weight14.3 lb (6.5 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

Product Reviews

See all reviews!
Review part 63-6014
Wednesday, September 30, 2015 - Part 63-6014
This intake really works and sounds unreal for the 4.0 v6 under the hood.... above 3k rpm and the monster roors nicely.. def better power across the band and sure gas is better also... Best 300 I've spent in long time.. A must get.

Eric Taylor
Williamsburg, VA
Saturday, July 04, 2015 - Part 63-6014
Easy to install. Fits ok but doesn't come all the way up against my hood. Not sure if this will be an issue yet. I'll get more weather-stripping if I need it. Fuel mileage has improved. Power has increased. It gives me extra pulling power up long grades. Sounds GREAT I installed it on a Xterra.

Brian H
Las Vegas, Nevada
Monday, June 08, 2015 - Part 63-6014
Great service. Product fit perfectly and exceeds my expectations.

Robert Calupca
Sanford Florida
Monday, May 25, 2015 - Part 63-6014
1. So easy to install my teenage daughter could've done it. 2. Very pleased with the increased horsepower,and with that said one needs to be easy on the pedal if you are looking for improved mpg. 3. Very pleased with the increased mpg in my new 2015 Frontier. I went from 10.4 to 13.8 city and 21.0 hwy with cruise set at 5 over speed limit. I did do some experimenting with 70 mph cruising and I could see the average mpg starting to tank and know that if I were to set the cruise at 60 my mpg on the highway would be above 22 mpg.

Greg Wollmuth
Dubuque, Iowa
Monday, April 20, 2015 - Part 63-6014
Great intake as always. I've had three different vehicles with K&N cold air intakes and they do a great job of fitting it in the engine bay. I like the performance boost and I love the way it sounds at high rpm's.

Midland, Texas
Tuesday, April 14, 2015 - Part 63-6014
Super easy to install. My truck sounds great when I get on the gas, however the reason why I purchased it was to improve my gas mileage. Which I am very pleased with.

Greg Wollmuth
Monday, February 23, 2015 - Part 63-6014
Definitely recommend this kit to everybody who owns a Nissan Xterra. It is straight forward to install, took about 90 minutes in total. The power delivery is improved and the shifts seem smoother and there is an improvement in gas mileage. The sound is intoxicating once you get to 3500 rpm it is loud...really loud.

Dave W
Battle Ground Washington