Quote:
Originally Posted by Lifted07Sierra
Im reading that you guys are saying that the L99 cant be tuned because of the fuel management.
My 5.3 Sierra has AFM and Ive had it custom tuned by a preferred vendor on www.gmfullsize.com
Worked out great, removed some torque managment. Adjusted when AFM kicks on and off. I ended up getting 1.6mpg better after the tune |
I don't know where people are getting this, I mean go look at the G8GT forums, a bunch of them are getting tunes (and picking up a ton of power...) with out any problems.