BULLY DOG GT DIESEL EXTREME TUNERS

Bully Dog 40428
Bully Dog 40428
Bully Dog 40428
Bully Dog 40428
  • Pre-loaded DPF deleted Tunes
  • All models support DPF/EGR/UREA REMOVAL
  • Switch on the fly between the 4 power levels (Switch-On-The-Fly Not available on Duramax 11-16)
    *For Racing applications only – not to be used on gazetted roads if any emissions items are removed*
40428 – 6.7L Cummins
Tuning HP TQ HP Gain TQ Gain
No Power 337 656
Tow 400 781 91 208
Performance 464 906 128 278
Extreme 473 930 140 274
40428 – 6.7L Powerstroke
Tune HP TQ HP Gain TQ Gain
No Power 339 616
Towing 363 715 24 99
Performance 397 751 58 135
Extreme 421 779 83 163
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