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Enhance your 2001-2004 GM Silverado 2500 HD with the Injen Evolution Cold Air Intake System, part number EVO7008. Crafted in the USA from durable cross-linked high-density polyethylene, this intake system offers an aggressive under-hood appearance while ensuring a perfect OE fit. The innovative 2-piece box design incorporates a boost plenum and a large SuperNano-Web dry air filter, which measures over 1.25 inches deep, providing maximum filtration surface and airflow capacity. The roto-molded intake tube is custom-designed and dyno-tuned to optimize power gains, delivering up to 21 horsepower and 43 lb-ft of torque, verified through extensive testing. The system’s design maximizes under-hood space, allowing unrestricted airflow to boost engine performance without the need for aftermarket tuning or modifications.
The Injen EVO7008 features premium hardware, including stainless steel band clamps with inner protective liners and automotive-grade urethane couplers for a secure, slip-free seal. Its proprietary SHUR-LOCK mounting system ensures the air filter remains firmly in place, maintaining optimal sealing even under demanding driving conditions. This intake system also boasts an aggressive intake growl during acceleration, enhancing the driving experience. Designed to work with the stock calibration, the EVO7008 improves airflow and engine breathing, resulting in noticeable performance improvements while retaining factory drivability. Its construction and engineering focus on durability, with all hardware and clamps made from stainless steel and reinforced silicone couplers, ensuring long-lasting reliability.
Note that this product is not currently CARB exempt and is not approved for use in California. The system is fully serviceable, allowing for easy filter cleaning and maintenance. Backed by Injen’s limited lifetime warranty, the Evolution intake system is the ideal upgrade for those seeking significant horsepower and torque gains along with a more aggressive engine sound. Made in Pomona, California, this intake system exemplifies American manufacturing quality and performance innovation, providing a straightforward installation that enhances your truck's performance and appearance.
Features:
Fitment:
2001 Chevrolet Silverado 2500 HD Base
2001 Chevrolet Silverado 2500 HD LS
2001 Chevrolet Silverado 2500 HD LT
2001 Chevrolet Silverado 3500 Base
2001 Chevrolet Silverado 3500 LS
2001 Chevrolet Silverado 3500 LT
2001 GMC Sierra 2500 HD SL
2001 GMC Sierra 2500 HD SLE
2001 GMC Sierra 2500 HD SLT
2001 GMC Sierra 3500 SL
2001 GMC Sierra 3500 SLE
2001 GMC Sierra 3500 SLT
2002 Chevrolet Silverado 2500 HD Base
2002 Chevrolet Silverado 2500 HD LS
2002 Chevrolet Silverado 2500 HD LT
2002 Chevrolet Silverado 3500 Base
2002 Chevrolet Silverado 3500 LS
2002 Chevrolet Silverado 3500 LT
2002 GMC Sierra 2500 HD Base
2002 GMC Sierra 2500 HD SL
2002 GMC Sierra 2500 HD SLE
2002 GMC Sierra 2500 HD SLT
2002 GMC Sierra 3500 Base
2002 GMC Sierra 3500 SL
2002 GMC Sierra 3500 SLE
2002 GMC Sierra 3500 SLT
2003 Chevrolet Silverado 2500 HD Base
2003 Chevrolet Silverado 2500 HD LS
2003 Chevrolet Silverado 2500 HD LT
2003 Chevrolet Silverado 3500 Base
2003 Chevrolet Silverado 3500 LS
2003 Chevrolet Silverado 3500 LT
2003 GMC Sierra 2500 HD Base
2003 GMC Sierra 2500 HD SLE
2003 GMC Sierra 2500 HD SLT
2003 GMC Sierra 2500 HD WT
2003 GMC Sierra 3500 Base
2003 GMC Sierra 3500 SLE
2003 GMC Sierra 3500 SLT
2004 Chevrolet Silverado 2500 HD Base
2004 Chevrolet Silverado 2500 HD LS
2004 Chevrolet Silverado 2500 HD LT
2004 Chevrolet Silverado 2500 HD WT
2004 Chevrolet Silverado 3500 Base
2004 Chevrolet Silverado 3500 LS
2004 Chevrolet Silverado 3500 LT
2004 Chevrolet Silverado 3500 WT
2004 GMC Sierra 2500 HD Base
2004 GMC Sierra 2500 HD SLE
2004 GMC Sierra 2500 HD SLT
2004 GMC Sierra 2500 HD WT
2004 GMC Sierra 3500 Base
2004 GMC Sierra 3500 SLE
2004 GMC Sierra 3500 SLT
2004 GMC Sierra 3500 WT
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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).
