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Upgrade your Chevrolet Silverado 1500 with the K&N Engineering KNN77-3021KP cold air intake system, designed to deliver a guaranteed increase in horsepower and torque. This system features a mandrel-bent aluminum intake tube that ensures smooth airflow, improving engine efficiency and performance. The oversized, conical High-Flow Air Filter uses oiled cotton filter media, allowing for up to 100,000 miles between cleanings under typical highway driving conditions, reducing maintenance and enhancing durability. The system includes a custom heat shield or air box that prevents hot air from the engine bay from entering the intake, helping to optimize air intake temperature for better combustion and power output. Installation is straightforward and can typically be completed in less than 90 minutes, making it a practical upgrade for enthusiasts and daily drivers alike.
Constructed by K&N Engineering, this cold air intake is built to last and is backed by the K&N No-Hassle Lifetime Limited Warranty, ensuring quality and peace of mind. It is compliant with EPA standards and is not prohibited by air freight restrictions, making it suitable for most regions. Please check the product specifications for CARB status if you intend to use it on pollution-controlled vehicles in California, as some intakes may not be legal for street use in that state. This performance kit is designed specifically for 1999-2002 Chevrolet Silverado 1500 models equipped with V8-4.8L or 5.3L engines, offering a significant upgrade over stock intake systems.
By installing this K&N cold air intake system, you can expect improved throttle response, increased horsepower and torque, and enhanced overall engine performance, all while enjoying the longevity and reliability that comes with K&N products. Its durable construction and proven design make it a popular choice for truck owners seeking to maximize their vehicle*s potential without extensive modifications.
Features:
Fitment:
1999 Chevrolet Silverado 1500 Base
1999 Chevrolet Silverado 1500 LS
1999 Chevrolet Silverado 1500 LT
1999 GMC Sierra 1500 SL
1999 GMC Sierra 1500 SLE
1999 GMC Sierra 1500 SLT
2000 Chevrolet Silverado 1500 Base
2000 Chevrolet Silverado 1500 LS
2000 Chevrolet Silverado 1500 LT
2000 GMC Sierra 1500 SL
2000 GMC Sierra 1500 SLE
2000 GMC Sierra 1500 SLT
2001 Chevrolet Silverado 1500 Base
2001 Chevrolet Silverado 1500 LS
2001 Chevrolet Silverado 1500 LT
2001 GMC Sierra 1500 SL
2001 GMC Sierra 1500 SLE
2001 GMC Sierra 1500 SLT
2002 Chevrolet Silverado 1500 Base
2002 Chevrolet Silverado 1500 LS
2002 Chevrolet Silverado 1500 LT
2002 Chevrolet Silverado 1500 WT
2002 GMC Sierra 1500 Base
2002 GMC Sierra 1500 HT
2002 GMC Sierra 1500 SL
2002 GMC Sierra 1500 SLE
2002 GMC Sierra 1500 SLT
2002 GMC Sierra 1500 WT
2003 Chevrolet Silverado 1500 Base
2003 Chevrolet Silverado 1500 LS
2003 Chevrolet Silverado 1500 LT
2003 Chevrolet Silverado 1500 WT
2003 GMC Sierra 1500 Base
2003 GMC Sierra 1500 SL
2003 GMC Sierra 1500 SLE
2003 GMC Sierra 1500 SLT
2003 GMC Sierra 1500 WT
2004 Chevrolet Silverado 1500 Base
2004 Chevrolet Silverado 1500 Hybrid
2004 Chevrolet Silverado 1500 LS
2004 Chevrolet Silverado 1500 LT
2004 Chevrolet Silverado 1500 WT
2004 Chevrolet Silverado 1500 Z71
2004 GMC Sierra 1500 Base
2004 GMC Sierra 1500 SLE
2004 GMC Sierra 1500 SLT
2004 GMC Sierra 1500 WT
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
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Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
