Diesel Spec Inc

Excellent service, very knowledgeable and detailed with their work and follow up. They kept me in the loop throughout the whole process. Highly recommend!!

We've had 2 different tuners in the states attempt to tune my 2015 kenworth t800 with a 550 cummins, between the 2 different tuners, about 17 different tunes that just did not perform,i start researching and find diesel spec, and boy am i glad i made the call,truck runs like a dream, dont waste your time going anywhere else, diesel spec is #1,thank you for fixing my truck
brendon jones

Excellent service , very polite crew..fixed up my computer , and now it runs great

Diesel spec help many. Owner operator.and. Fleets Too survive financely and made a better living for them self. In very tough times therefor. I would recomend. Very strongly. For anybody who hasn't used dieselspec yet. Saving. $$$$. ( it is not what you make its what you don't have too spend. )

Good professional services. They know what they are doing. Very knowledgeable staff with 100 % positive results

This is the only place to go and get your engine peeked and tuned. They definitely know what they are doing. My truck has never run better and I am saving $ with the increase in my fuel economy.

They made my paccar mx13 engine wake up , retune much more power !! With complete delete kit . No more engine fault codes . Night and day different. Thankyou !!!

Good people.
They have a 1980 kenworth long nose,it looks fantastic.

Best tunes to wake up your old tired truck.

Best place for diesel engine tuning (all brand)

Good place

Ok

SH

Sympathique, Service avec minutie et respect ainsi que grande connaissance dans le milieux des moteurs depuis environ 30 ans d’expérience.

Jamais été déçu. Toujours bien servi et satisfait de leur ouvrage

Une belle équipe