has anyone upgraded there xzillerator to the xzillerator 2 through quadzillas upgrade program

 

i bought mine already upgraded to
the x2 box. i dyno'd 450 hp / 860 ft lbs
with the x2 race box on 140 hp setting
and my truck is 100% stock otherwise.

you'll be happy with it !

 

Just got mine back yesterday. I went ahead and paid the extra to get the new harness with the coolant temp support. Paid less than the cost of a RP gauge and got RP, Boost and Coolant temp in one package. I'd say they're pretty close on power with the edge going to the X2 module. The X2 does seem to make power a lot smoother. The last cool thing is that you can download different tunes from their website. Definitely worth the minimal cost.