05 silverado 5.3

[goldchevy05]

hello yall im new to this kinds stuff umm i bought a diablo gmu7193 months ago and when i plugged it in it said invalid parameters or something like this programmer is not for this vechicle well ne wayz you all must know this lil message that pops up ummm iw as wondering was it vin locked or just the wrong type of programmer thanks if so which will suit my truck

[mikel]

Can you please tell us what revision is on the Predator?

Thanks