My duramax was bubbling air into radiator reservoir and causing the add coolant light to come on so Corey recommended to remove EGR and replace injection pump with a cp3 style while there Weeks later after pleading that I needed my truck he told me it was ready. I get to shop still have air in coolant he stated it would work out with time. I drive to house maybe 30 miles and have a huge leak, a bypass hose had came off because it was not clamped I clamped hose and added water took it back to shop and he tells me sorry and it will be ok! Months later my truck still bubbles air and add coolant light comes on now my exhaust pipe hits spare tire and body mounts rattling! Very expensive also. Not Happy at all!

I brought my 2006 F350 in for an oil change, leaky valve cover and a small intermittent coolant leak. They got it all done same day. Corey and Brad were friendly, professional and very knowledgeable of the 6.0 Powerstroke. They are a relatively small, but very clean shop. They can be busy at times but up front about scheduling which I appreciate. The to-do list goes on of course with this old truck.

Havent had any work done. But I stopped in to buy a used part. Ended up chatting with me for almost a hour. Very friendly, outgoing and informative.

Took my truck in because of a bad ficm, they were friendly and got the work done in a timely manner. I’ll be taking my truck there from now on.

Cory is professional and explains in detail what is going to be done and how it’s going to take place. I went in with a bad tune and he was able to get his shop to get my truck running right with a single tune at first. I then went back and did an upgrade to an ezlink shift of the fly tune and I’m beyond happy and content. All this done on a phone call on what needed or wanted done and performed on the same day of call being placed. Cory and his shop will continue to have my business and highly recommend anyone to let him take care of your vehicle.

Best place to take your diesel truck. Quick turn around and only pay for work that you actually need. I will be a customer for as long as own my ram 2500 cdi!

Corey and his qualified mechanics at Hastings Diesel Performance do excellent work for a fair price. I was very pleased with the work they did on my 05 FX4. They did a great job replacing an injector and they also replaced a cracked Y pipe. My truck is running great again thanks to Hastings Diesel. If your in the New Braunfels area and your diesel is in need of repairs give Corey a call. Youll be glad you did.

My dad and I had work done at Hastings and are completely happy with it. Corey is top notch and great to deal with.

Super friendly and quick service. They don’t try to throw you a curve ball on what’s needing done or the price. They are super responsive and keep you updated.

Time and time again Corey has provided excellent quality work for my family and I. You can look forward to honesty, reasonable prices and communication from Corey and his A Team. We will be referring our friends and family to BEST diesel shop in the area HDP. Highly recommended! Thanks fellas.

Very pleased with the work done on my truck at Hastings. Took my truck in they worked on it the same day! Very fast service, highly recommend for any diesel truck need you may have!

Corey was super friendly and went above and beyond to make sure I got my vehicle fix in a timely manner.

Had them replace a turbo for me after what I thought was stuck turbo vanes after another shop said everything was fine but check engine light was on. Corey diagnosed the real problem and still had my truck back to me on the day he said it would be done even though there turned out to be some other things that needed to be addressed. Will definitely be a return customer for any other work.

Corey was great!!! I appreciate his knowledge, transparency, flexibility and professionalism. Hastings Diesel Performance was efficient and did great work. Definitely my go to for diesel repair!!!!

Super nice. Didn’t just throw un-needed parts on my truck. Actually couldn’t find what was wrong and wasn’t going to charge me for their time and work, (I gave them some cash anyways). Don’t see too many people like that anymore. I will definitely go back to Hastings.

New to the New Braunfels, Texas area I moved from Ohio 100 miles into the trip to Texas my 6.0 powerstroke decided to lose all power. I had it transported from Ohio to Texas to his shop once I did some research on the area shops. I’m glad I did looking at his reviews it was either the reviews where fake (having all 5 stars is pretty hard to come by) or he knows his diesel motors. He called me with all the issues he KNEW was the problem. He never said I “think” or it’s “possible” which is often a common issue when going to a mechanic. His estimates where never more than he stated and for the work he had to do, I had my truck back in no time! Thanks for getting my ol truck back on the road and running better than before I will and have already scheduled more maintenance with him. If your looking for a great shop with great prices I recommend his shop

Great shop. Very ethical and does great work. Very easy to work with and not always trying to up sell.

Very good service experience, fair prices and had quick turnaround

Hastings diesel is definitely five star status. I had some pretty big issues and concerns on my 2002 Dodge Ram. After sitting down with Corey and talking about the concerns. We came to the best decision on what was most important for the vehicle and what could wait for a better time to be dealt with. In addition going above and beyond, because of my concerns, he was able to show me the problems threw the prosses being remedied. Again 5 star 🌟🌟🌟🌟🌟 status. Thank you so much Hastings diesel.

Corey is professional and always has been very helpful. Honest business, will definitely be back.

Super nice guy, came in early the morning looking for a piece of exhaust pipe and he hooked me up with an exact fit piece. If you need work done hit up Hastings

Superior knowledge, great customer service and gets the job done correctly.

Did great work and was very reasonable. Night and day difference in my Ford OBS!!

Experienced, fast, polite and reasonably priced!

Always professional and helps in any mannerI am a customer for life. I highly recommendHastings for any and all auto repairs and truck repairs.

Called these guys with a rear main seal leak. He told me it would go down in a week. It did exactly that and he was done in the timeframe described. Everything was clean and I was very pleased with my experience. Check em out!

I used them for one of our service trucks. Fair price and quick turn around. Much appreciated.

Great work and awesome customer service

Great price and the customer service was just so welcoming. very thankful and blessed for this new shop!

They always get it right the 1st time. Not a cliche the truth!!

Excellent work, priced as he stated. Ill come back

Very helpful and fair!

Great people