$355.99 USD
MSRP $645.29 44.8% Off
Free Ground Shipping!
In Stock & Ready to Ship!
Find a Dealer

K&N 77-9031-1KP Air Intake

Intake Kits > Performance Air Intake System
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   10 Customer Reviews
  • Guaranteed to increase horsepower
  • Designed to improve throttle response and engine sound
  • Free-flowing aluminum tube
  • Replaces entire factory air intake system
  • Lasts up to 100,000 miles before service is required (depending on driving conditions)
  • Easy to install, usually in 90 minutes or less
  • Washable and reusable lifetime air filter
  • K&N Million Mile Limited Warranty
The K&N 77-9031-1KP Air Intake fits some Toyota Sequoia, and Toyota Tundra models. See vehicle applications link for details.
The K&N 77-9031-1KP high-flow performance air intake system is a free-flowing, mandrel-bent aluminum tube air induction system designed to fit some Toyota Tundra and Sequoia models. The restrictive factory air filter and air intake housing on your vehicle are replaced by this K&N air intake system which is designed to dramatically reduce air flow restriction as it smoothes and straightens air flow. The improved air flow allows your engine to inhale a larger amount of air than it would from the stock air intake. More air means more usable power and acceleration throughout your engine’s RPM range. The 77-9031-1KP 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 the intake tube into the engine’s throttle body for a guaranteed power gain. The intake tube has an attractive chrome-like finish that's made to last and it accommodates the factory mass air sensor, fuel pressure vent hose and crank case vent hose. The oversized cone shaped 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 usually in 90 minutes or less using existing factory mounting points. The tools needed are a couple of screwdrivers, a ratchet set and some wrenches. Some K&N 77 series air intakes are not legal for sale or use in California and other states adopting California emission standards while others are CARB exempt and 50 state legal. Check the K&N catalog or website for vehicle applications and specific CARB status for each vehicle and air intake.

[More Information on K&N 77 Series Air Intake Systems]

Product Specifications

Estimated Horsepower Gain13.43 HP @ 5142 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 Included3
Intake Pipe Color / FinishPolished
Intake Pipe MaterialAluminum
Product Box Height12.5 in (318 mm)
Product Box Length18.25 in (464 mm)
Product Box Width18.25 in (464 mm)
Product Style77 Series Kits
Replacement FilterRF-1042
Street Legal In All US States No
TUV Approved (Europe)No
Weight14.1 lb (6.4 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N 77-9031-1KP Air Intake Product Reviews

Tuesday, August 9, 2016 - Part 77-9031-1KP
I was totally blown away at my Tundras performance after installing the K&N air intake. From throttle response to the increase in horse power to the additional gas mileage, everything about the 77-9031-KP air intake gets 5 stars. Before installing the air intake I was using a K&N air filter and cabin air filter and was impressed just with those. Installing the air intake was the icing on the cake. Plus the prompt shipping and delivery was as impressive.

Thomas Grieve
Lady Lake, Florida
Monday, June 13, 2016 - Part 77-9031-1KP
Great job!

Arthur Penney
Sarasota, Florida
Thursday, February 18, 2016 - Part 77-9031-1KP
Everything you expect. A must have, improves throttle response, makes shifting easier and more HP. Love it, love it, love it!

North Dakota
Thursday, August 27, 2015 - Part 77-9031-1KP
Very quick delivery and product is outstanding.

Mark Michaelsen
Wednesday, December 31, 2014 - Part 77-9031-1KP
Works as good as I was hoping. Gives a little more power to the engine immediately and gives it a deeper rumbly tone. Sounds amazing when you throttle it. Great product, definitely.

Philip Wolford
San Antonio, Texas
Thursday, July 17, 2014 - Part 77-9031-1KP
Increased HP and .5 to 1 mpg increase. One indirect problem. The air box on the Tundra sits on top of the main wiring harness. The K&N intake opens the space and makes for a nice nesting area for squirrels. Wire insulation is made with peanut and vegetable oils to prevent cracking, creating a magnet for squirrels, rats and mice. I had my 2011 Tundra 1 month before having it towed to Toyota. Wiring harness replacement was $5300.00. Solution is a pepper embedded electrical tape sold by Honda. I have all wires wrapped and no squirrel problem since.

Terry Boyer
Fairview, Texas
Friday, January 31, 2014 - Part 77-9031-1KP

Walter Romanczyk