2001-2013 Duramax Diesel LB7/LLY/LBZ/LMM/LML/LGH

 2006-2013 5.9 / 6.7 Dodge Cummins

Custom Performance Programming 

 MME the leader in Duramax & Cummins Tuning


Madman Engineering just raised the bar again by being able to tune your truck and give you at least 2 MPG with a completely incognito program that won't void factory warranty and pass all emissions test.

We are the only custom tuner that offers 100% satisfaction or your money back!!!!

You will be shocked when you feel the hidden power we found.

We have a 1 day super fast turnaround on most ecm tuning 

We also offer code free DPF, UREA, & EGR delete off road tuning. This allows you to remove the entire DPF exhaust system and UREA injection system with out having any trouble codes or going into reduced power mode. We also can turn off your EGR system  without removing ANY parts or setting any trouble codes.

Standard Tunes Below

2006-2007 5.9 Dodge Cummins 65hp Tow tune 125Hp / 233Hp                                  (233Hp tune will need lift pump)

2007.5 - 2012 6.7 Dodge Cummins With DPF  50hp Tow tune / 80hp                          With out DPF  120HP or 175 Hp

2001-2004 Duramax  LB7  65hp Tow tune, 125Hp / 250Hp                                       (250Hp tune will need lift pump)

2004.5-2006 Duramax  LLY LBZ 65hp Tow tune 125Hp / 250Hp                           (250Hp tune will need lift pump)

2007-2010 Duramax  LMM With DPF  50hp Tow tune / 80hp                                       With out DPF 65hp / 125Hp / 250Hp  (250Hp tune will need lift pump)               

2011-2013 Duramax  LML LGH With DPF  50hp Tow tune / 80hp                               With out DPF  100HP or 160 Hp

Madman Engineering also does custom tuning for larger injectors, bigger turbo or duel Cp3's, for the 01-10. We offer a DSP5 switch, that's 5 different tunes that can be switched on the fly,  stock / 65hp /125hp / 250hp / mega smoke (not for LML or LGH at this time).

Phone 618-777-6007

Skype madmanengineering


 165 Lake  Rd.

 Golconda, Illinois 62938



 are EVIL and

!!! Must be Punished !!!