I am trying to find any site/forum that will discuss what we can and can"t do with the 5.3 ltr with Active Fuel Management: exhaust, the whole works. Some good reading on this site but also would like others. Any help would be greatly appreciated.
Thanks in advance.:thumbsup:
2008 GMC...
Just a quick question. Does anyone know of a tune or tuner that will work on an '08 5.3 with active fuel management? Would love to find one but don't want to screw something up.