Why buy from us ?

First, we are a shop specialized in heavy duty diesel engine since 1987.So we are expert in troubleshooting and engine rebuilders.

Unlike many other tuning shop, we can repair, troubleshoot or install parts for all engines in place.So if u have a problem, we will not tell u to go to another  shop to get your engine repair, but we will do it in our shop or will help u on the phone with 4 mechanics available with more than 15 years of experience each.

Also, all our tuning is made by us in house. No need to send ecm away or wait 1 week.90% of the time, we will ship back your ECM for tuning the same day we receive it.

We are in the middle of Montreal city, so we can ship ecms anywhere, anytime using UPS,FEDEX,PUROLATOR,DHl or any other courrier to offer u the fastest service possible.\

Diesel Spec  continue to be innovative, each day, to keep our customers satisfied by offering them the best quality service possible and the latest technologies.

We are specialized in the following engines :

- Cummins

- Caterpillar

- Detroit Diesel

- Paccar

- International Navistar

- Mercedes

- Volvo

- Mack

- John Deere