We Have Streamlined Your Browsing Experience

Now you can view individual product lines for Ford, GM/Chevy & Dodge. We have included several of our new products and great deals on each individual Product Page. Click on any of the product photos and it will take you directly to more info to check out specs and/or to order.


Now a Page with All the Dirty News You Are Looking For

We have added a new page to our website...Dirty News. Here we will keep you posted on our race schedule, if we are going to be in your area for local events and any other news regarding G & J and The DirtyMAX. We will soon be adding a new line of wearable goods and merchandise also.


How Much Fun Do We Have At Our Races and Events

We try and take as many photos and videos at each of our events just in case you couldn’t make it. Our new Gallery & Video Page can help you keep up with our latest races, check out the new trucks on the scene and all the fun we have!


Puzzled How to Install Your New Performance Product

Whether you’re trying to install your new Black Maxx® or a FASS® Fuel Filter, our new Tech Info Page can help provide you with a wide variety of Installation Manuals to download and help you thru your installation.

G & J Diesel Performance Center is a light duty diesel truck repair shop that specializes in the Dodge Cummins, Ford Powerstroke and GM Duramax trucks. With over 20 years serving Billings, MT and the surrounding communities. Our qualified technicians are factory trained and we have the latest diagnostic equipment guaranteed to get the job done right.

We install and carry a large selection of quality parts from manufacturers like Garrett Turbo, Bosch, MBRP, FASS, South Bend Clutch, H & S Performance, PPE, Alliant Power, Motorcraft, BD Diesel and Industrial Injection.

G & J Diesel has built some of the top trucks in the diesel industry like the DIRTYMAX and Mark Ventling's 1/4 Mile Miracle. We also built the engines for Steve Darnell's Cummins Rat Rods. These trucks have been featured in Diesel Power magazine, with additional articles in Diesel Tech, Diesel World, Hot Rod and 8 Lug magazines. The DirtyMax have also been shown on television episodes of Two Guys Garage and Super Lift.

If you'd like to contact us, feel free to give us a call at 800-813-6366 or via email at One of our super cool reps will get back to you as soon as possible.

G & J Diesel is Montana's first Bosch Authorized Diesel Service Center. We are also a Garrett Turbo Authorized Dealer as well as members of ADS and SEMA.

Garrett by Honeywell Bosch Auto Parts Association of Diesel Specialists Specialty Equipment Market Association
Address Mailing Address Phone Hours Email
1739 Main Street PO Box 50732 Toll Free: 800-813-6366 Monday - Friday Product Questions
Billings, MT 59105 Billings, MT 59105 Local: 406-248-6366 8:00 am - 5:30 pm Technical Questions
Fax: 406-259-3556 (MST) Shipping & Tracking