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Chevy / GMC · Duramax

2011–2016 LML 6.6L

Trucks with this engine

  • Chevrolet Silverado 2500HD

    2011–2016

    6.6L Duramax LML

  • Chevrolet Silverado 3500HD

    2011–2016

    6.6L Duramax LML

  • GMC Sierra 2500HD

    2011–2016

    6.6L Duramax LML

  • GMC Sierra 3500HD

    2011–2016

    6.6L Duramax LML

Parts we stock for it

All LML parts

What is it for?

Same engine, three different jobs. Each says what it costs you and what it does not.

  • Stock & Sorted

    How it left the factory.

    We find the actual fault and fix that. No added power, so nothing downstream gets new stress. The cheapest path if the truck is simply not right.

    • Full diagnostic scan and road test
    • Replace what failed, not what might
    • Written estimate before any work

    Quoted per truck

    Emissions equipment stays fitted and working.

  • Tow Tuned

    Calibrated for weight and heat.

    Engine and transmission calibration aimed at towing: cooler exhaust temperatures and shifts that hold under load. Power goes up moderately. Best value per dollar if the truck works for a living.

    • Engine and transmission calibration
    • Gauge or monitor so you can watch EGTs
    • Trans service if it has not had one

    Parts from $444 · labour quoted

    Emissions equipment stays fitted and working.

  • Built for Boost

    Turbo, fuel and cooling.

    Hardware first, then a calibration to match it. Expect a build sheet, a lead time on parts, and a dyno pull before and after so the numbers are real.

    • Turbo, injectors, CP3 or fuel supply
    • Cooling and intercooler to suit
    • Calibration matched to the hardware, on the dyno

    Parts from $1,695 · labour quoted

    Emissions equipment stays fitted and working.

Other Duramax years

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