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Sinister Diesel Cold Air Intake for 2004.5-2007 Dodge/Ram Cummins 5.9L

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Was: $453.70
Sale: $349.00
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Save: $104.70

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Note: This part is in high demand and may require a build time of 1 to 2 weeks. If you need this part sooner, please call us at 888-966-5643 to verify availability.

Using this 5.9L Cummins cold air intake from Sinister Diesel will really boost performance in your truck. Feel quicker throttle response and turbo spool-up, which makes a big difference when towing, hauling, racing, or driving around town. Because it’s been designed, engineered, and fabricated in-house by Sinister Diesel, you can feel good about bolting this part onto your 2004.5-2007 Cummins 5.9L.

All mounting hardware is included and the installation process is simple. You also get silicone couplers which resist the high temperatures associated with diesel trucks. The precision CNC mandrel bent aluminum tube is smooth on the outside and in, facilitating quick airflow. A Signature Sinister Blue powder coat adds a nice touch to your engine compartment.


  • 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


  • CNC Mandrel Bent Aluminum Intake Tube
  • Reusable Cotton Media Filter
  • Installation Hardware

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Q: I know it is stronger and looks better, but doesn't aluminum conduct more heat than plastic?
A: On a technical standpoint, aluminum would be a little more subject to the heat because it is metal, but, it is thin walled tubing, and would also dissipate the heat much faster as air is moving. The issue with a plastic intake, while it takes just as much time to heat up, it takes a considerable amount more time to dissipate that heat build up, also known as heat soak. We could easily out source our intakes like most other companies, but instead we choose to spend more time and effort to make these out of a much better material, in house with our own welders and materials. We have been testing and running these for quite some time, and have out performed every other intake we have put it up against.


Shipping Information

  • Item Requires Shipping
  • 8.0 lbs.
  • W13.0000” x H13.0000” x L27.0000”
  • Free Shipping!

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