Dieselsmokeking

Hi im new to chevys ive owned all cummins in the past and i was wondering i tried putting a bully dog on my 03 chevy z71 and it poped up as reduced power on the gauges and it was reall slowww....Thanks Zac

country_09

from the sounds of it you'll need to contact bully dog tech for that one.

Dieselsmokeking

But when i take it back to stock it runs like nothing happened to it

country_09

no codes pop up at all? what settings are you runnin on it? I've got a few friends with bullydogs on their diesel and it change it big time, in a good way

Dieselsmokeking

no codes at all idk and mines a 5.3

country_09

ohh i thought yours was a diesel...well your problem is that a programmer doesn't give you horsepower like it's advertised to do...just changes shift points and parameters of that sort. a custom tune will give you the power you're lookin for

Dieselsmokeking

where can i get a custom tune at ?

country_09

blackbear performance, Wheatley, or Nelson

them are the big three I believe