Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 7 - Jul 12
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
K&N 15 GMC Sierra 2500/3500HD 6.6L V8 AirCharger Performance IntakeA high density polyethylene (HDPE) rotationally molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect
A high-density polyethylene (HDPE) rotationally-molded tube helps increase the volume of airflow to your engine, and provides a guaranteed increase in horsepower and torque. These systems are paired with a washable, reusable High-Flow Air Filter featuring oiled cotton filter media. The oversized, conical design allows you to go up to 100,000 miles between filter services under normal highway driving conditions. A custom heat shield helps protect intake air from the high temperature of your engine bay, and the entire system can typically be installed in less than 90 minutes. Some intakes are not legal for sale or use on any pollution controlled motor vehicle in California. See the product specifications for CARB status on each part for a specific vehicle.This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2016 | Chevrolet | Silverado 2500 HD | High Country |
| 2015-2016 | Chevrolet | Silverado 2500 HD | LT |
| 2015-2016 | Chevrolet | Silverado 2500 HD | LTZ |
| 2015-2016 | Chevrolet | Silverado 2500 HD | WT |
| 2015-2016 | Chevrolet | Silverado 3500 HD | High Country |
| 2015-2016 | Chevrolet | Silverado 3500 HD | LT |
| 2015-2016 | Chevrolet | Silverado 3500 HD | LTZ |
| 2015-2016 | Chevrolet | Silverado 3500 HD | WT |
| 2015-2016 | GMC | Sierra 2500 HD | Base |
| 2015-2016 | GMC | Sierra 2500 HD | Denali |
| 2015-2016 | GMC | Sierra 2500 HD | SLE |
| 2015-2016 | GMC | Sierra 2500 HD | SLT |
| 2015-2016 | GMC | Sierra 3500 HD | Base |
| 2015-2016 | GMC | Sierra 3500 HD | Denali |
| 2015-2016 | GMC | Sierra 3500 HD | SLE |
| 2015-2016 | GMC | Sierra 3500 HD | SLT |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 440 reviews
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Product Reviews
★★★★★ 5
Helped smooth engine idle and acceleration
Size: 300 Milliliter
Bought a new to me bmw and this stuff made it run smoother definitely helped clean things up internally car has a smoother throttle response and sounds smoother at idle will definitely be using as recommended to keep injectors and internals cleaner
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Reviewed in the United States on March 9, 2026
★★★★★ 5
This is the product you want
Size: 300 Milliliter
'08 Honda Fit 270k
This product works! Felt almost immediately, acceleration opened up.
Excellent.
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Reviewed in the United States on March 5, 2026
★★★★★ 5
This stuff really works fast and improves mpg like you won’t believe
Size: 300 Milliliter
I’ve tried many other types of fuel injector cleaners but this brand is amazing. I ran my truck down to less than a quarter of a tank of gas and poured it into the tank. I then drove 30 miles to an appointment and spent an hour in the appointment on the way home I noticed my mpg had gone up significantly. My truck tells me how many miles per gallon. I’m getting as I drive. I had gotten a code and I replaced the mass air filter and found a slight crack in an air hose, which I replaced that help with my code a little bit, but cleaning the fuel injectors with this product made such a significant difference. I just simply had a hard time believing it, but it’s true.
I’m done with all those other brands of fuel injector cleaners which never really seemed to help much if you really want an amazing experience give this product to try.
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Reviewed in the United States on August 4, 2025
★★★★★ 5
Perfect fit
Color: 20pcs
Perfect replacement retainer clips for my car.
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Reviewed in the United States on February 15, 2026
★★★★★ 5
use these every day
Color: 20pcs
fits better than OEM and better price
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Reviewed in the United States on March 13, 2026