L5D Landing Page Banner Photo

Power & Dependability

L5D Custom Tuning

We know the number one issue these trucks face is lack of power, especially when it comes to towing. Our tuning provides a significantly wider torque curve compared to stock. Allowing you access to more power across the entire RPM range. This additional low-end torque makes getting loads moving a breeze. Plus it allows the engine to shift up and throttle back when driving at speed on the highway. This can even result in fuel savings. 

Custom tuning can also be optimized for aftermarket upgrades you may have on your truck such as a lift pump or turbo. We can even adjust your speed limiter to account for your tire size or speed rating. With all of that additional power, there wont be any more struggling to maintaining your speed while towing either. Just sit back and enjoy being able to use your cruise control again.

L5D Dyno Graph-04

Tuning Features

What Makes Our Tuning So Special?

custom-tuning-2
Dead Pedal Elimination 

Fix the slow pedal response and sluggish acceleration of your L5D. Our custom tunes perfectly adjust pedal sensitivity to provide smooth power delivery and snappy throttle response.

Less Soot Production

The increased engine efficiency provided by our ECM tuning combined with our use of air-fuel ratio limiters result in less soot production. This results in less DPF accumulation, longer intervals between re-gens, and less wasted fuel. 

True Custom Tuning

Custom tuning can be tailored to your specific engine configuration. This means you will be getting the absolute most power possible from your engine. We can also adjust speed limiters for tire size. 

Fully Emissions Intact Tuning

Don't let emissions regulations hold you back from improving the performance of your diesel truck. With emissions in-tact tuning there's no need to delete or remove your valuable emissions components. 

Tunes

  • SPORT
    • +125 RWHP + 240 ft-lbs - Total 445 HP and 890 ft-lbs
    • Drastically improves throttle response
    • No more dead pedal
    • Fastest possible acceleration
    • Best tune for fuel economy
    • The biggest adrenaline rush we can provide

  • STREET
    • +100 RWHP + 180 ft-lbs - Total 420HP and 830ft/lbs
    • Quick acceleration makes the truck feel lighter
    • Smooth and wide power curve
    • Perfect for daily and highway driving
    • Pedal response is smooth and snappy
    • Retain factory turbo-braking feature
    • No dead pedal feeling

  • OPTIMIZED STOCK
    • Slight revisions to factory calibration
    • Slightly increased levels of power over factory
    • Good for troubleshooting physical problems
    • Great for when someone else drives your truck




 

  • HEAVY TOW
    • +40 RWHP + 70 ft-lbs - Total 360HP and 720ft/lbs
    • Get your trailer moving quicker and easier
    • Lug in the highest gear while towing on the highway
    • Have enough power to “Shift Up, Throttle Back”
    • No more sluggish acceleration while towing 
    • Tow up steep grades with ease
    • Maintain set cruise control speed while towing
    • Increase power, not EGTs (Exhaust Gas Temperature)
    • "SMART EGT Control” automatically manages EGTs
    • Air-Fuel Ratio limiters help minimize soot production
    • Designed to tow 8,000 lbs. up to Gross Vehicle Weight
    • Factory turbo brake retains complete functionality
  • LIGHT TOW
    • +80 RWHP +140 ft-lbs - Total 400HP and 790ft/lbs 
    • Truck is much more responsive even with a load
    • Smooth power curve that makes driving  fun
    • More useable power for all driving scenarios
    • Have enough power to “Shift Up, Throttle Back”
    • Perfect for smooth, low-speed trailer maneuvering 
    • “SMART EGT Control” automatically manages EGTs
    • Minimized soot production
    • Designed to tow less than 8,000 lbs.
    • Factory turbo brake retains full functionality


Want More Info?

Talk To The Experts

With over 15+ years of Duramax tuning experience we know exactly what these trucks can handle. Our expert staff of tuners and mechanics are ready and waiting to discuss any tuning questions you may have. Give us a call at (815) 568-7920 Monday-Friday 9am-5pm (CST) or click the link below to schedule a call.

L5D 1.3

Services

Your Path To Power

Untitled-7-07

Bolt-on Upgrades

Shop our selection of must have bolt-on upgrades for your 6.7L Cummins. We have everything from after market injectors to high flow intake systems. 

Starting at  $655

Untitled-7-06

Custom Tuning

Improve drivability, towing performance and average MPG along with increasing your power by over to 100hp and 180ft/lbs of torque.

Starting at $2,050

Stealth icon Blue

Stealth Turbos

Support more power and lower your EGTs. With multiple options ranging in power levels from 650hp up to 800hp we have the perfect charger for you.

Starting at  $1,825