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63-9023
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K&N 63-9023 Air Intake

63 Series Aircharger Kits > Performance Intake Kit
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.4 out of 5 stars   5 Customer Reviews
  • 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
The K&N 63-9023 Air Intake fits some Toyota 4 Runner models. See vehicle applications link for details.
The K&N AirCharger 63-9023 air intake system replaces the restrictive factory air filter and air intake housing in some Toyota 4Runner models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your 4Runner’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 63-9023 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 socket set, a couple of screwdrivers 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]

Product Specifications

Estimated Horsepower Gain9.23 HP @ 5388 RPM
Air Filter ColorRed
Air Filter Height7 in (178 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 Included4
Couplers Included1
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
Product Box Height12.25 in (311 mm)
Product Box Length20.25 in (514 mm)
Product Box Width12.25 in (311 mm)
Product Style63 Series Aircharger Kits
Replacement FilterRC-5100
Street Legal In All US States No
TUV Approved (Europe)No
Weight10.9 lb (5 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N 63-9023 Air Intake Product Reviews

Wednesday, October 19, 2016 - Part 63-9023
It installed easily per the instructions. I was a little concerned at first but then I followed the instructions and it went as described.

John Cramer
Eagle, Idaho
Thursday, June 9, 2016 - Part 63-9023
Outstanding! Awesome kit. Very easy install and can feel and hear the difference, pays for itself with a wash and reuse filter. You outdid yourself. I am a customer for life now. Thank you, Chris

Chris Hardenstein
Aurora, Texas
Monday, February 22, 2016 - Part 63-9023
Fit was good. Installation was not difficult. The product works very well and has increased responsiveness of the engine.

Kevin
Raleigh, North Carolina
Tuesday, March 4, 2014 - Part 63-9023
So far so good. Install was much more complicated. Performance is great.

CPT K Loftus
Chester, Virginia
Tuesday, March 4, 2014 - Part 63-9023
So far so good. Install was much more complicated. Performance is great.

CPT K Loftus
Chester, Virginia