predator tuner question

[mat82284]

I say this on the predator forum and i was thinking how is this possible? he said he improved alot on his quarter mile. You can read it here. Also i hear the factory hp tune doesnt adjust for gears? anyone else have this problem?




http://www.diablosport.com/index.php?name=PNphpBB2&file=viewtopic&t=494&highlight=u7146