Grizzli Diesel Performance

John did an outstanding job on my truck. Made sure I was ready to go by the time frame he stated, protected my front end from any scratches…and even had my truck washed before pickup! Thanks a lot John! I wish you and your shop a lot of success and I’ll be seeing you soon!

John is an outstanding diesel mechanic and is very knowledgeable about all makes and builds of trucks plus diesel engines. I am very confident with his work and passion for quality work, done right the first time. I will continue to have my truck work done with with Grizzli exclusively.

John is by far one of the most knowledgeable people I have ever met when it comes to diesel trucks & honestly anything mechanical whether it be your work truck, race truck, or tow truck, any truck.
Grizzli is the 1 stop shop for all your diesel needs. Pricing is beyond fair, communication is not a problem with John, he did a turbo swap on my truck and sent me many photos through the process. John goes up and out of his way to make sure that things are A1 on the vehicles that he touches. No one else will ever touch my trucks again!!!!!!

Best diesel work in the midwest! Truck went to the dealer twice for the same problem and they never figured it out. John fixed it right the first time. Been taking my truck ever since and will never take it anywhere else! Very honest!

had an S&B cold air intake installed on my 2020 RAM 2500 by grizzly diesel. Absolutely love the sound and the noticeable acceleration that you get from these cold air intake‘s and you can rest assured that John will professionally install it without any issues. I highly recommend Grizzly Diesel for all your diesel truck needs. There pricing is very fair and everyone was very professional and John and his crew will do your truck right the first time. It’s Definitely Worth coming here for all your mechanical and truck maintenance issues and needs.