I have a 2004 z71 5.3 4x4 3.73 gears front and rear , If I install the diablo tune , change speed limit to 130 and upshift vs tp
to 3 percent 1to2, 4 percent 2to3 , 6 percent 3to4 I noticed that when slowing down turning usually 15 to 20 mph the truck has no get up and go it sounds as if its ...

06MONTESS what is the difference between the diablo tune and the 91/93 tune ?

is that across the board if so the 87 tune is better than the 93 tune or diablo ?

Dont Forget if you regear the rear gear , you HAVE to regear the front gear on a 4x4

Sorry if this has been asked , What are the power / torque numbers for the tunes , 87 , 91 , 93 , Diablo is what shows on my tuner . 2004 Silverado 4x4 5.3ltr. , I Have programmed with Diablo tune , 1 percent upshift increase and 12 psi line pressure on upshift -.25 percent shift time decrease also ...