GM’s Duramax diesels are common-rail engines with a long list of hardware options. Kirtsy Calibrations builds EFI Live and WinOLS calibrations around what is actually on your engine.
Engines
The order form lists the Duramax engines we commonly see:
- Duramax LB7
- Duramax LLY
- Duramax LBZ
- Duramax LMM
- Duramax LML
- Duramax LGH
- Duramax L5P
Other engine or a special build? Choose Other on the order form or ask us first.
Tools
EFI Live is widely used to read, edit and flash GM controllers. Tell us what you have on the order form, and we confirm the right tool and procedure for your controller before you pay.
What we calibrate
- Fuel quantity and injection timing
- Rail pressure targets
- Turbocharger and boost control
- Torque and protection limits, including exhaust temperature
- Transmission (TCM) shift and torque converter calibration
What we ask before quoting
- Your stock read and controller details
- Injectors, pumps, turbo and other hardware, current and planned
- Transmission and driveline details if you tow or haul
- Your goals and how the truck is used
Browse tune files and tools in the shop, or read how custom tuning works.
Tuning a Duramax?
Tell us about the engine and upload your stock read. We review every order before you pay anything.