JM Repairs

Specializing in Custom ECM tuning and heavy equipment

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Online Tuning Available

We can provide custom tuning over the internet for MOST Cummins and Cat engines, and some Detroit.

Emission Delete and Power Upgrade

We are also able to do DPF, DEF, and EGR deletes as well as power upgrades (fuel savings by 0.5 to 7 mpg) on cars, trucks, agricultural equipment, construction equipment and big rigs (Cummins, Cat, Mack and Volvo, Detroit, Maxxforce, Paccar, and John Deere Tigercat).


We can do EGR, DPF and DEF,and MORE..

We can do EGR, DPF, DEF, and change almost any settings. On most gas engines we can do CAT delete and change speed settings.