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Switch on the Fly Tune Only for EFI Hardware Duramax LLY (2004.5-2005)

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Sku: MO-112001000100

Instantly choose between towing, race, sport economy driving and stock tunes for your 2004 or 2005 Chevy Silverado or GMC Sierra. EFI Live license is optional. You can purchase the required switch for LLY from us as well

From $425.75 CAD

To $903.90 CAD

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DSP5 Tune   + $425.75 CAD

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Switch on the Fly Tune Only for EFI Hardware Duramax LLY (2004.5-2005)
Switch on the Fly Tune Only for EFI Hardware Duramax LLY (2004.5-2005)

In stock

Summary

    Flash using your EFI Live Flash Scan or AutoCal device

    You will need an EFI License that you can buy from us

    5 Switch on the Fly Tunes 

    • Instantly switch tunes while driving
    • Choose your switch option based on model year
    • Motorops tunes produce less smoke
    • More consistent power delivery
    • Easy installation instructions
    • Telephone support if needed

    Switch Between:

    HEAVY TOW

    • For towing from 8,000lbs up to Gross Vehicle Weight Rating
    • Wider torque curve assists heavy loads
    • + 40 RWHP, + 80 ft-lbs torque
    • Exhaust temperatures drop up to 100F under full load

    LIGHT TOW

    • For those towing below 8,000lbs
    • Perfect balance of sport driving & functionality
    • Designed for weekend tower, boats, small tractors, etc
    • Unhook and enjoy a sportier drive
    • + 60HP, + 120 ft-lbs torque  

    SPORT ECONOMY

    • Fun “unloaded” daily driving
    • For driving around town, highways
    • Impress your friends
    • Put a smile on your face
    • + 80 RWHP, +260 ft-lbs torque
    • Puts your vehicle near the 380 RWHP mark

    RACE

    • Maxes out the factory fuel system
    • +100 RWHP, +200 ft-lbs torque
    • Recommend transmission tune to avoid premature wear
    • If you drive responsibly, can use Performance as you would Sport Economy
    • Also recommend FASS or Air Dog lift pump to maintain 400 RWHP

    OPTIMIZED STOCK:

    • + 10 HP, + 30 ft-lbs torque
    • Leaves factory rev limit in place

    Required Option

    • Switch for LLY

    Recommended Option

    Transmission Tuning

    • Increased transmission line pressure for holding more HP and torque
    • Revised shift schedule to improve drive-ability
    • Keeps the truck on top of the turbo
    • Improved shift timing
    • Re-designed torque converter lock-up strategy
    • Allows power transfer from the engine to the wheels more directly
    More Information
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