Switch on the Fly Tune Upgrade from Single Tune for EFI Hardware - Duramax LWN (2017-2018)

Switch On The Fly (4 Tunes) Upgrade from Single

Switch between Heavy Tow, Sport Economy, Race or Optimized Tune.

Required Installation *

* (You should already have this installed and running)

• EFI AutoCal v3 or FlashScan v2
• A single Motor Ops ECM Tune

About our included 4 Tunes

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

SPORT ECONOMY

• Fun “unloaded” daily driving
• For driving around town, highways
• Impress your friends
• Put a smile on your face
• + 110 RWHP, +200 ft-lbs torque
• Puts your vehicle near the 500 RWHP mark

RACE

• Maxes out the factory fuel system
• +140 RWHP, +260 ft-lbs torque
• Adds 260 ft-lbs of torque over factory
• 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 530 RWHP

OPTIMIZED STOCK:

• + 10-15 HP, + 30-40 ft-lbs torque
• Leaves factory rev limit in place

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