4.7 performance
I've got the truck programed with the "Performance 91" tune and I changed out my thermostat to the Jet 180`
Seems to have made a mild difference. Shifting is allot later now which keeps her in the powerband longer....
At this point I dont think it was worth $400
I'll update this when I get the gears installed. hoping to get that done next weekend.
Seems to have made a mild difference. Shifting is allot later now which keeps her in the powerband longer....
At this point I dont think it was worth $400
I'll update this when I get the gears installed. hoping to get that done next weekend.
Last edited by 2006RamCrazy; Jan 26, 2009 at 08:38 AM.




