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63-3087
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K&N 63-3087 Air Intake

63 Series Aircharger Kits > Performance Intake Kit
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   4.9 out of 5 stars   11 Customer Reviews
  • Guaranteed horsepower gain
  • Designed to improve throttle response and engine sound
  • Free-flowing polyethylene intake 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 63-3087 Air Intake fits some Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD models. See vehicle applications link for details.
The K&N 63-3087 AirCharger air intake system replaces the restrictive factory air filter and air intake housing in some Chevrolet Silverado 2500 HD / 3500 HD and GMC Sierra 2500 HD / 3500 HD models. K&N intakes are designed to dramatically reduce intake restriction as they smooth and straighten air flow. This allows your 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 63-3087 air intake comes with a black metal topped K&N high-flow air filter and a heat shield that installs into the original air box space. Air is directed through an aerodynamically engineered intake tube into the engine’s turbo inlet for a guaranteed power gain. The tube accommodates the factory mass air sensor, humidity sensor and filter minder (where equipped). 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 screwdriver, ratchet set and some 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 Gain24.09 HP @ 2950 RPM
Air Filter ColorRed
Air Filter Height7.5 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 Included7
Couplers Included3
Intake Pipe Color / FinishBlack
Intake Pipe MaterialHigh-Density Polyethylene
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 FilterRC-5179
Street Legal In All US States No
TUV Approved (Europe)No
Weight17 lb (7.7 kg)
Horsepower gains based on similar vehicle dynamometer test. Results will vary.

K&N 63-3087 Air Intake Product Reviews

Thursday, October 6, 2016 - Part 63-3087
2015 Duramax. Great intake. Easy to install. (it only took 45 min.)

Matt Molinet
Evansville, Indiana
Wednesday, September 14, 2016 - Part 63-3087
Didn't take long to install but a little hard getting hoses and tubes on and lined up. Felt like connecting hoses could have been a little longer. Truck immediately increased mileage between 55 and 60 mph by 1-2 mpg. That impressed me but truck seems to struggle to run the same mileage between 65 and 70 that it did before. A little confused by that. But for a 3500 dually it's averaging 20mpg empty. Seems to run a bit better. Overall I'm happy with it.

Kim Johnson
Erie, Illinois
Wednesday, September 7, 2016 - Part 63-3087
Fast delivery, easy install, and a little extra pep at the top end.

Bruce Wendel
Surrey, Canada
Friday, August 19, 2016 - Part 63-3087
Very satisfied.

Darren Barsness
Schertz, Texas
Wednesday, March 23, 2016 - Part 63-3087
Awesome product!

Cory Cleveland
Banning, California
Monday, January 4, 2016 - Part 63-3087
Have K+N air filters on most of my vehicles.

Stephen Woolley
Oregon
Friday, October 23, 2015 - Part 63-3087
I have installed K&N air filters on all of the vehicles I've owned with no regret and I am not disappointed with this purchase. I have observed better throttle response and improved mileage. Try this system and you will be a believer. Mike

Mike Carpenter
Lake Wylie, South Carolina