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Sinister Diesel Cold Air Intake Chevrolet|GMC Duramax 6.6L 2011-2012
$489.99
Free Shipping
The more air you can get to your Duramax engine, the better and more efficiently it runs. Factory air intakes just can't stand up to the Sinister Diesel 2011-12 Duramax 6.6L LML cold air intake (CAI) in this case. This cold air intake kit significantly improves throttle response and turbo spool up, and it's great for daily driving, towing and even racing applications!

If you're looking to get more performance and fuel economy from your 6.6L Duramax LML V-8, then the Sinister Diesel cold air intake is the way to go. The aluminum tubing minimizes the effects of heat soak, and features CNC mandrel bending for smooth airflow and excellent durability, and it also comes with long-lasting reusable cotton filter media that is oversized to maximize airflow. This tubing is polished and powder coated in the signature Sinister Blue helping to combat corrosion and adding a great look under the hood.

The 2011-12 Duramax 6.6L cold air intake has been designed, engineered and fabricated by Sinister Diesel ensuring the highest level of performance and quality, and these kits come with all mounting hardware required for the installation as well as silicone couplers designed for maximum durability. This LML CAI kit has been developed for easy, drop-in installation with basic hand tools and minimum experience.

Features:
  • Precision CNC Mandrel Bent Aluminum Tubing for a Perfect Fit
  • Oversized Long Lasting Reusable Cotton Filter Media
  • Significantly Improved Throttle Response and Turbo Spool-up
  • Great for Daily Driving, Towing or Race Day
  • Perfect When Paired With a Sinister Diesel Exhaust or Tuner
  • Polished and Powder Coated in our Signature Sinister Blue
  • Easy, Drop-In Installation with Basic Hand Tools and Minimum Experience
  • Installation Guide
Kit Includes:
  • CNC Mandrel Bent Aluminum Intake Tube
  • Reusable Cotton Media Filter
  • Installation Hardware
Fitments:
  • 2011-2012 Chevrolet|GMC 2500 LML
  • 2011-2012 Chevrolet|GMC 3500 LML
Proposition 65

WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
2011-2012
Chevrolet Silverado 2500
2011-2012
Chevrolet Silverado 3500
2011-2012
GMC Sierra

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Who is Sinister Diesel?

Sinister Diesel is an American bred company built by Brian George, Michael Mitchell, and a whole team of people who share the same passion, diesel-powered 4x4 vehicles. It all started when this group of friends was tinkering with their truck and had an idea to start a company that would provide high-performance diesel parts that would stand out among the rest. As enthusiasts themselves, they understand what it takes to make these vehicles perform, which is what they try to provide with their customers. Today, Sinister is considered one of the fastest-growing companies when it comes to diesel aftermarket parts.

Partnering With The Best

Diesel works closely with some of the top brands in the market such as ARP, H&S Performance, SCT, Bully Dog, MBRP, AFE, and S&B. This allows them to provide one of the widest selections of parts to their clients. They offer parts such as water pumps, head gaskets, Turbochargers, engine components, electrical components, and more. 

You Will Know It’s Sinister Diesel

Sinister Diesel creates a stylish and distinctive look for all their parts. Their parts are finished in metallic blue which the company dubbed “ Sinister Blue”. This adds an aesthetic value to the vehicle and helps provides a distinct look that people would remember.

Purchase Sinister Diesel Products At Vivid Racing

If you are in the market for high-quality diesel parts, then Sinister Diesel is the brand for you. They provide all the parts needed to improve the performance of your vehicle and they do this in style. To know more about Sinister Diesel, Visit Vivid Racing and check out their list of products that fit your specific needs.

Warranty Terms and Conditions:

Racing - Also, due to the nature of Race Only Parts, these items are not returnable or refundable. ALL SALES ARE FINAL and these products have no warranty.
Street - The warranty for parts designated "street legal" covers manufacturer defects. Should a "street legal" part fail due to a defect in manufacturing as determined by Sinister Diesel, customer is entitled to replacement of that specific part, or the equivalent amount in Store Credit. No credit will be issued for labor expenses incurred.
To initiate a warranty claim, please contact our Warranty Department to begin the process.
All warranty determinations including, but not limited to, the cause of part failure and customer remedy will be determined solely by Sinister Diesel.
In all cases, the item must not have exceed the Manufacturer's warranty period.
If the part was built by another Manufacturer, all Warranty Requests and Claims have to be made directly with the Manufacturer themselves.
Gaskets, O-Rings and other Wearable Parts are not covered under Warranty

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Things
Sale price None
Wholesale price $462.55
Shipping Weight: 6.70
Length: 29
Width: 13
Height: 11
Product Added At Wednesday 03 April, 2019
Product Modified At Wednesday 06 August, 2025
Imported By EPICF
Last Edited By Turn_API
View In Admin

Emissions Info
Carb Approved No
Carb Number -
Epa Status N/A
Prop65 Yes
Carb Required -
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Vendor Inv Cost Retail Jobber MAP Core Updated
Turn 14 $391.99 $635.70 $423.89 $489.99 ? 2025-08-06 10:49:55


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