Originally Posted by
GMC D-Max
From everything I've ever heard or read, you can't go wrong with Kennedy custom ECM tuning. My experience is limited to Edge and Banks power modules, with Edge being slightly more satisfying than Banks. But, there's still things about it that I'm not really satisfied with, so when I can finally free up the scratch (and convince the wife that we
really need it), I've got a spare ECM that's getting sent to John.
Start
HERE.
I have had John's 100/250 HP ECM tunes for over 2 yeares and they are awesome. I run the 100HP tune daily and for towing. I only run the 250 Tune for special occassions, make the Cummins and Powerstroke owners hate ME.
'03 Chev Duramax ext. cab, Kennedy ECM,After Market turbo,tranny, triple disk convertor, Exhaust Brake, electric tran. cooler, dual exhaust, Supertank 57 gallon.