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K&N 77-9031-1KP 4.8 out of 5 stars 6 Customer Reviews
Intake Kits > Performance Intake Kit

List Price: $594.16
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77-9031-1KP
 
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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]
  • 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

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 PortsAll intake tube ports needed for the specified applications are included
Mass Air Flow Sensor Adapter IncludedMass Air Flow Sensor Adapter Included When Required
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
Vacuum Tubing IncludedNo
Weight14.1 lb (6.4 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.


Product Reviews


  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
  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
  Great
Walter Romanczyk Texas
  I love it! I immediately gained 1.5mpg and a good bit of horsepower. I figured that this intake will pay for itself in just a year's time!
Hunter Hutchins Jackson, Mississippi
  I had a good experience with ordering and receiving my filter kit. Installing the kit was pretty easy following the instructions provided. I did notice a positive change in performance.
Rob Howerzyl Meridian, Idaho
  Bought your cold air intake system for my 2008 Tundra 77 series am very happy with it. I noticed much quicker acceleration at higher r.p.m. installation was easy. Only problem I had was some of the holes had to be re-tapped because of chrome build up.
Overall  I'am happy with it. Thanks...Dennis

Dennis Seely Greeley, Colorado