Michigan's one stop shop for Diesel Performance!
DNR Customs
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DNR Customs is your one stop shop for Powerstroke, Duramax, and Cummins Diesel Performance Parts. We as a company only work with the industry leading, big name companies to help you repair or modify your Powerstroke, Duramax, or Cummins diesel engines. On top of offering top of the line products, our certified mechanics can help you repair and maintain your diesel engines. 
In the diesel performance industry, the DNR Customs experts not only build and test the products we sell, they can help you find what you are looking for on our website.  If you have questions our sales reps have the knowledge and experience to further assist you. 
At DNR Customs we are addicted to power and performance in all diesel engines. As a company we test, and install almost every part we sell to help assist our customers choose the right parts/products for your vehicle. DNR Customs started under the core foundations to provide the best technical support, prices, parts selection, and customer service in the diesel performance industry. 

If you can't find what you need online or have a question about one of our diesel performance parts call us at:                  

(586) 648-6930

Featured Products/Services

Cummins Flex plate Install kit 94-18

$112.50
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We have put together the complete package to secure your flex plate to the crank for your high performance diesel. After years of struggling to keep the flex plate from coming loose, this combination/technique is the only thing that has kept ours tight. Tried and tested above 2000rwhp. Kit will come with everything needed along with instructions to ensure your install is done correctly. Works on factory 94-18 Cummins crank You will have to check thread depth prior to install.

CTS 3 Inisight

$440.95
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Insight CTS2 Features:
  • Slim, sleek case design
  • 5” full–color, high-resolution, swipe screen
Custom color mixer for gauge arcs, needles, and backgroundsMultiple gauge screen layoutsFully customizable backgroundsHDMI style plug for power and linking EAS accessoriesOne-touch easy menu navigationNotification centerAvailable for 1996 and vehicles equipped with an OBDII (diagnostic) portSwitch between US or Metric units of measureComprehensive digital gauge display Available for 1996 and newer vehicles equipped with an OBDII portCompatible with other tuning devicesDisplays dozens of parametersLight sensitivity meter to dim screen as ambient light decreasesInternet Updateable

2013-2015 Dodge 6.7L S&B Intake

$349.00
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Improves Airflow versus Stock by: 29.3% thru side inlet, 43.8% thru front (ram-air) inlet & 54.6% with both inlets open on S&B intake

FASS TITANIUM SERIES DIESEL FUEL LIFT PUMP 165GPH DODGE CUMMINS 5.9L AND 6.7L 2005-2018

$799.00
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This kit includes a FASS STK-1002 (Bulkhead and Suction Tube Kit). Machined from 6061 T-6 Billet Aluminum, the Bulkhead fitting functions as both a suction tube and return and features a 5/8″ Suction Tube along with a ½” Fuel Return Port. This new and improved version from our previous Suction Tube Kit allows the user to plum their FASS return line directly to their bulkhead fitting, eliminating all cutting of the filler neck, and significantly speeds up the installation process. The pickup tube is fabricated of PTFE Teflon which can be easily cut to adapt to different depth of fuel tanks. Properly installed, you can safely operate down to about 1/8 tank of fuel.

  • New Bolt On Bracket Installation
  • Preset 16-18 PSI Fuel Pressure
  • 165 Gallons Per Hour Flow Rating
  • Removes Water, Air and Debris From Diesel Fuel
  • 3 Micron Filtration Rating
  • Protects and Extends The Life Of Your Injectors
  • Improved Cold Weather Starts
  • Decreases Carbon Monoxide and Carbon Dioxide Emissions
  • ½ Inch Fuel Lines and Ports
  • Bulkhead Fitting Suction Tube and Return
  • Fuel Mileage Improvement
  • Improved Fuel Volume Delivery
  • Smoother Engine Idle
  • Optional Electric Heater Ports
  • Optional Fuel Pressure Gauge Port
  • Limited Lifetime Warranty
  • 30,000 Mile Filter Life Expectancy
  • Quietest Motor On The Market

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Dodge Cummins

   89-93 Dodge 
   94-98 Dodge
   98.5-02 Dodge
   03-07 Dodge
   07.5-11 Dodge




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Ford Powerstroke

   94-97 Ford
   99-03.5 Ford
   03.5-07 Ford
   08-10 Ford
   11-14 Ford

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Chevy Duramax

   01-04 Chevy
   04.5-05 Chevy 
   06-07 Chevy
   07.5-10 Chevy
   2011+ Chevy
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