What are the horsepower and torque gains with this Injen intake?

Injen has dyno-tested this Evolution Cold Air Intake system and reports gains of up to 30 additional horsepower and 80 ft-lbs of torque. These gains are achieved by allowing the engine to breathe more freely compared to the stock air intake system.

Does this intake require an aftermarket tune to work?

No, this Injen Evolution Cold Air Intake system is designed to work with the stock engine calibration. This means you can install it and immediately benefit from the improved airflow without needing to reprogram your vehicle's computer.

What is the air filter made of and can it be cleaned?

The included air filter is an Injen SuperNano-Web dry air filter. It is designed to be fully serviceable, meaning you can clean and reuse it. Replacement filters are available under part number X-1101-BB.

Injen 11-12 GMC Duramax LML 6.6L Evolution Intake

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Specifications

Brand: Injen
Part #: EVO7012
UPC: 843115027872

Injen 11-12 GMC Duramax LML 6.6L Evolution Intake

Name: Injen 11-12 GMC Duramax LML 6.6L Evolution Intake
Brand: Injen
Price: 335.95 USD
Availability: InStock

$335.95

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Fits 2011-2012 Chevrolet Silverado 2500 HD. This Injen Evolution cold air intake system is made from durable polyethylene and offers dyno-proven horsepower and torque gains.

Key Features

Fits 2011-2012 Chevrolet Silverado 2500 HD, 2011-2012 Chevrolet Silverado 3500 HD, 2011-2012 GMC Sierra 2500 HD, and 2011-2012 GMC Sierra 3500 HD.
Includes a durable roto-molded housing with a boost plenum and a custom-designed intake tube.
Features a large, serviceable Injen SuperNano-Web dry air filter with deep pleats and a SHUR-LOCK mounting system.
Constructed from cross-linked high-density polyethylene for extreme durability.
Dyno-proven gains of up to 30 horsepower and 80 ft-lbs of torque.
Stainless steel band clamps with an inner protective liner and reinforced automotive-grade silicone couplers.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more

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Will this fit your vehicle?

Product Details

When you're looking to get more out of your 2011-2012 Chevrolet Silverado 2500 HD or GMC Sierra 2500 HD with the 6.6L Duramax LML engine, this Injen Evolution Cold Air Intake system is what you get. Inside the box, you'll find the roto-molded housing with a built-in boost plenum, the custom-designed intake tube, a massive SuperNano-Web dry air filter, and all the necessary stainless steel hardware and automotive-grade silicone couplers for installation. This kit is designed to replace your restrictive factory airbox and intake tubing, allowing your engine to breathe more freely.

This Injen Evolution intake is constructed in the USA from cross-linked high-density polyethylene, a material chosen for its extreme durability and ability to withstand the underhood environment. The intake tube is custom-tuned and dyno-tested to reduce restriction and help increase both horsepower and torque, with Injen reporting gains of up to 30 horsepower and 80 ft-lbs of torque. The large, 360-degree SuperNano-Web dry air filter features deep pleats for maximum surface area and uses a SHUR-LOCK mounting system to ensure a secure, non-slip seal. Installation is designed to be straightforward, with no cutting or drilling required, and it works with the stock engine calibration, meaning no aftermarket tuning is needed for these performance improvements.