Tuner DT1120010106009 Heavy Tow Tune incl EFI Live Spade | 2004.5-2005 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax LLY

Our Heavy Tow Custom Tune

• Emissions Intact – you do not remove your emissions equipment
• 49 State Legal!
• Haven't made performance modifications to your truck? Check out our 50 State Legal Heavy Tow TuneÂ

• Safe for Towing Heavy
  • Increase power, not EGTs (Exhaust Gas Temperature)
  • Air:Fuel Ratio limits built into calibration to limit soot production
  • Designed to tow 8,000 lbs – GVW
  • Factory turbo brake retains complete functionality

• Horsepower & Torque Increase +40 RWHP, +72 ft-lbs
  
  • Get your trailer up and moving more quickly
  • Lug in the gear you want while towing
  • Have enough power to “Shift Up, Throttle Back†
• Revised pedal sensitivity
  • Low-speed trailer maneuvering
    Back up with trailer without lurching
• Custom Tuning from DuramaxTuner.com
  
  • Fully customized tuning with more than 100+ calibration changes from stock
  • No hacking wires into control units or fuel pump and turbo sensors
  • More power and less soot than box programmers
  • World Class Customer Service team that actually answers the phone!

Who Benefits from this Tune?

• Over-the-road driver or tows things for a living
• Large boat owners
• Pulls construction equipment
• Welding rig with lots of added weight
• Need to tow in the toughest situations
• Tow trucks and heavy service trucks
• Tows 10,000 miles or more every year
• Tows through hills, mountains and inclines
• You can use this to tow lighter, but you'll get slightly better MPG with our Light Tow tune
• Better yet, get all five of our custom tunes with Switch on the FlyÂ

SPADE / EFI Live Autocal v3 Included

• SPADE (Standalone Programming And Diagnostic Equipment)
• a.k.a. EFILive AutoCal V3
• Simple to use, handheld OBD flashing (programming) hardware
• Scan tool – Log engine data for troubleshooting and diagnostics
• Flash unlimited number of updates for your truck
• Flash multiple trucks with the same device
• Individual tunes and licenses are required for each new truck
• Up to 600 VIN slots are available
• EFiLive License is included in this price

Recommended Transmission Tuning

• Works with ECM Tuning to provide smooth shifting and superior drive-ability
• Required for the best possible drive-ability
• TCM Tuning is the best tool to ensure your engine is operating within its preferred rev range

• Custom ECM Tuning
• Larger tires (35†+)
• Modified turbo(s)
• Built transmission
• Any modification that impacts operating RPMs

• Use the wider torque curve provided by ECM Tuning
• Keep your truck in its power band when lugging up a grade

• Optional 2nd or 3rd Gear Start for competition applications
• Optimize your aftermarket turbocharger performance