These guys went above and beyond with my Diesel engine and she’s never run better.Quality work at a fair price.I can highly recommend them.And many thanks.

Great job on are 6.0.

I hesitate to send my truck to any shops because true pride in workmanship and integrity are getting to be rare. They are not the cheapest shop in town but are well worth it! And with that said they saved me $2500 on one repair by not selling me something that others said I needed. Thanks Larry!

Amazing shop. Highly recommend. Larry the owner fixed my duramax. Great knowledgeable team.

Honest. Fast. Everything you need for your diesel.

Always knowledgeable and professional, awesome shop

When I discovered that I had a carb link in my diesel truck, I was told to see Larry Downum at Diesel Injection Systems on Tama Ln. Larry is the owner. He gave me an assessment of the problem which he said was normal for my particular model. He was kind enough to suggest that instead of just replacing two of the plastic rings in the carb to do them all which would be much cheaper than having to come back later costing more later when the other rings went out. Since 3 years ago, my truck has run perfectly. He also suggested I start putting diesel fuel additive as a preventive measure for carb build up on the injectors. That would be very expensive to repair. Larry is the kind of owner that ever shop should be owned by. HIGHLY RECOMMEND seeing Diesel Fuel Injections should a problem arise on your diesel engine.

Great very helpful people should have injection pump back tuesday

Extremely clean facility . wonderful service .Highly recommended.USSI...

I have a 1st generation 1993 Dodge turbo Cummins diesel there is no other service shop I would take my truck to ever these guys have bent over backwards repeatedly and done an excellent job at a fair price

Very good service and knowledgeable people.

So professional and shop is spotless

Ill tell you why I like that they went that extra-mile

These guys know diesels.

Great parts and customer service

Good service and support!

They do the job right every time