Service manual

From : yonzie

Q: i just bought my 1st diesel 2004 and have heard about upgrade supertuner microchips that increase hp and can help with towing. anyone have insight on whether these are a good idea or can they harm an engine in the long run if good know any sites that offer them for the 04; ive seen some for the 02s and earlier. thanks .

Replies:

From : andy

sbhogle seems to know how to do this.. is there a wb sitte i can go to after i get my vin or do i just go by what my dealer can find out .