i was wondering if i could get some pointers to tune my wifes 2003 trailblazer for a little better mileage please.
i just finished tuning a friends LBZ and there was some nice info on the diesel pages ie; change this value to that, that value to this etc.
after doing some searching for this engine all i could find was alot of vague references to "play with this", or "adjust that" & not really anything concrete
right now its stock except for a K&N filter, but i would like to delete the cat and put in a free flowing muffler. we run 87 all the time and cant see myself paying more for 91.
ive attached the stock tune file. any tips are appreciated, thanks.