Here is what our clients are saying:

“Nice people who know their trucks. Fair price with the bill itemized well.”

— Steven

“Great shop! Jon’s a wiz. I’ve taken my truck here several times for performance work. Jon regeared my truck to 4.56s. The Shop does great work. Highly recommend. My go to diesel performance shop. I wouldn’t go anywhere else. Very professional shop and one of the best in New England.”

— Bri

“I was beyond impressed with the work Jon and his employees did. I had been calling around shops for quotes on my LLY which needed headgaskets. JT's stuck out to me because out of the 20 shops I called, they had the best customer and gave me a reasonable quote. They were able to fit me in quickly and kept me updated with the progress and the hiccups they ran into with an 18 year old truck. They did a phenomenal job with the work and when going through the work they did, they didn't cut any corners. Even with the engine harness, there are high friction rub points and they had put high friction tape on those areas. I will absolutely be going back to them for diesel work and will be recommending friends as well”

— Brandon

“Very professional, Do great work 110% satisfied they now have all my Buisness. I called them to have service done on my company truck that was due to hit the road the next day and really needed it done that day. John says to me after I explained the situation, bring it down I will squeeze it in for you. This is after all other places could do nothing for me. So a huge thank you to John and everyone @ JT’s Diesel Performance”

— Stephen

“Always great service for a reasonable cost with nothing but honesty and loyalty to their customers. Nothing bad to say about these guys I will continue to give them all of my business. Give them a shot you will not be disappointed!”

— Chris

“Highly recommend Jt Diesel Performance for any of your diesel needs or issues as they do the job with great workmanship and high quality! Dropped off my 1997f350 with snapped and crusty manifold bolts and now the truck is like a whole different animal after John replaced the manifolds. Thanks again JT Diesel Performance!”

— Kyle

“JT was awesome. Really took care of me. Couldn't be happier, down to earth fair pricing. I will absolutely recommend it to anyone for their diesel truck needs.”

— Ed

“John, Timmy, and the rest of the crew do excellent work on cars, trucks, and everything with an engine! From mild to wild, they can get you headed in the right direction!”

— Ian

“Thanks John, for the quick turnaround on my woodchipper diagnosis/Repair. Highly recommend and will be using JT for future issues! Back to blowing smoke!”

— Ryan