K&N 63-9034 Air Intake

63 Series Aircharger Kits / Performance Air Intake System
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$339.99 USD
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Product Overview

  • 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 63-9034 Air Intake fits some Toyota 4 Runner, and Toyota FJ Cruiser models. See vehicle applications link for details.
The K&N AirCharger 63-9034 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 63-9034 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. 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 a screwdriver, pliers, 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]
Estimated Horsepower Gain12.18 HP @ 4600 RPM
Replacement FilterRF-1048
Air Filter ColorRed
Air Filter MaterialCotton Gauze
Air Filter Outlet ShapeRound
Clamps Included5
Clamp MaterialStainless Steel
Clamp StyleRegular
Couplers Included2
Product Style63 Series Aircharger Kits
Air Filter Height8 in (203 mm)
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Cross-Linked Polyethylene
Street Legal In All US States No
TUV Approved (Europe)No
Weight14.1 lb (6.4 kg)
Air Filter Large End Diameter7.5 in (191 mm)
Product Box Height12.5 in (318 mm)
Product Box Length22.25 in (565 mm)
Product Box Width14.25 in (362 mm)
California RestrictedNot legal for sale or use in California
Mounting Hardware IncludedYes
Warranty1,000,000 Miles/10 Year
Horsepower gains based on similar vehicle dynamometer test. Results will vary.
WARNING: Cancer and reproductive

K&N 63-9034 Air Intake Product Reviews

Wednesday, November 14, 2018 - Part 63-9034
The K&N intake really changed the way I felt about my 2017 4Runner. The vehicle felt underpowered, sluggish, and didn’t ever inspire me to use much throttle. After installing the K&N, the vehicle feels lighter and more athletic- it doesn’t seem to work as hard to go down the road or up slight inclines. The engine note under power is also much improved- it sounds more like I have a V8 under the hood. I don’t know that the vehicle accelerates any faster, but it sounds better and doesn’t seem to work as hard, so I’m very happy with it. I went from liking my 4Runner to loving it. I track my gas mileage religiously, so I will be interested to see what effect this unit has. My only complaint is a whistling noise that occurs between 1500-2200rpm under light throttle. I didn’t mind it as first, but it gets annoying after a while at highway speeds. If I had a fix for that, it would be perfect.

Lee Hastings
Midlothian, Virginia
Wednesday, August 22, 2018 - Part 63-9034
I love my Performance Air Intake System. My 2015 4Runner Limited has noticeably more power, especially when towing, and best of all, 8-10 improved mileage, from 17.4 to 19.2. My only questions is: WHY THE HELL DIDNT TOYOTA PUT THIS ON THEMSELVES??

Marty Gritz
Mason City, Iowa
Monday, December 25, 2017 - Part 63-9034
2014 Toyota 4 Runner Trail Premium. Had to modify plastic engine cover a bit, but other than that very smooth install. Definite improvement in throttle response. Have not had a chance to check mileage yet. Overall 4-Runner feels more peppy. A little louder than stock but actually sounds good. Very satisfied.

andrew witherell
Shelby, Michigan