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Get Power, Torque, and Efficiency

PDI is the industry leader in adding power, torque, and efficiency to your diesel engine. We are your solution to unlock the potential performance of your engine without sacrificing reliability.

you deserve the

highest quality

diesel performance products.

Established in 2001, PDI is the leader in aftermarket diesel performance products for Heavy Duty Trucks, Mid-Range Trucks, Motorhomes, Agricultural Equipment, and Construction Equipment. If you are looking to increase output of your engine we are dedicated to your efficiency and power. Call or order today and let us help you enjoy the drive.









Your equipment is
a reflection of

Who you are

  • PDI diesel treats you like family. They take the time explaining things to you. I had no idea they could make my semi-truck diesel run that strong. If performance is on your mind—as far as I'm concerned—there's nothing like PDI diesel.

    Ralph Craig
  • Always the best service and fast! I'm very particular about my trucks, PDI is always clean and careful with my trucks.

    Ladd Brindley
  • This is the only place to take your truck for all your performance needs!

    Allen J Wurzel Sr
  • "I save 45 minutes in drive time and... $300 per month in fuel savings. It's nice to not work the truck so hard so I have a lot more longevity in the life of the motor." DD15

    Brad Triplett Triplett Bros. LLC
  • "I can say after running the truck, with the Performance Tuner, I am thoroughly impressed with the drivability and improvement. It took the truck from being lazy to fun to drive. I'm now getting 6.75 MPGs. I must say I am very happy with the product." Peterbilt 389 CM2350

    Mike McManus SKILLEX

Unlock the




You Work Hard.

Enjoy the drive.


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PDI is raising the bar for quality service and performance parts. From the sale to installation, you can count on PDI to provide the best in customer service and technical support. PDI is dedicated to helping our customers achieve their power and efficiency goals. Please call or email us with any questions you may have.

687 North Industrial Rd.
St. George, UT 84770

Copyright © 2018 Performance Diesel Inc.

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