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The K&N 63-3087 Performance Air Intake System delivers more airflow to the 6.6L Duramax V8 engine in select 2015-2016 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD trucks. This system replaces the factory air filter and intake tube with a roto-molded HDPE tube and oversized oiled cotton high-flow filter for guaranteed horsepower and torque gains. A custom heat shield keeps intake air cool while providing high filtration.
Key Features
- High-Flow Air Filter: Washable reusable oiled cotton media lasts up to 100000 miles between cleanings under normal highway driving.
- Roto-Molded HDPE Tube: Increases airflow volume to the engine for power gains with smooth interior design.
- Custom Heat Shield: Shields intake air from engine bay heat to maintain dense cool air charge.
- Ships in protective box measuring 23.5 x 14.5 x 9.5 inches.
- Includes all necessary hardware and clamps for direct bolt-on fit.
- Yes it fits all listed 2015-2016 Chevrolet Silverado 2500HD/3500HD and GMC Sierra 2500HD/3500HD models with 6.6L LML diesel engine regardless of cab or bed length.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 2015-2016 | Chevrolet | Silverado 2500 HD | High Country, LT, LTZ, WT |
| 2015-2016 | Chevrolet | Silverado 3500 HD | High Country, LTZ, WT |
| 2015-2016 | GMC | Sierra 2500 HD | Denali, SLE, SLT |
| 2015-2016 | GMC | Sierra 3500 HD | Denali, SLE, SLT |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | 63-3087 |
| Product Type | Cold Air Intakes |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new K&N cold air intakes identified by manufacturer part number 63-3087. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.
About K&N Engineering
K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.
Related K&N Engineering Products
- Shop all K&N Engineering products
- K&N 2015 Chevrolet Silverado / GMC Sierra 2500/3500HD 6.6L V8 Performance Intake Kit
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- K&N 77 Series Performance Intake Kit for 11-14 Chevrolet Silverado/GMC Sierra 2500/3500 V8 6.6L
Frequently Asked Questions
How do I confirm K&N 63-3087 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.
Does K&N 63-3087 require tuning or emissions verification?
Requirements vary by vehicle and intake configuration. Check the current K&N application and emissions notes, and complete any required calibration before full-load operation.
What should be checked after installing K&N 63-3087?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.
Installation Instructions
- Uses simple hand tools and installs in under 60 minutes on stock vehicles.
- Includes all necessary hardware and clamps for direct bolt-on fit.
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