I just stacked the Edge juice W/attitude on top of the Granatelli I already had... I noticed my boost only gets up to 24psi on the edge monitor..(no boost elbow). The truck runs awesome with just the edge on 1, on 5 it starts to slip and shutter the trans.. Well i took the Granatelli off, my boost gets up to 31-32psi on the monitor on level 5..
Why is my boost so much lower with both programers but makes way more power?? is it just fooling the monitor?

Is it a bad idea to run both???
The Granatelli makes way more power then the Edge but i like the edge monitor....

 

The Granatelli is, I believe this to be true, a repackaged Quadzilla product.

It may be bad to run both depending on how much timing is added from each. Without knowing for sure, i wouldn't do it. If you can overpower the tranny with the Edge alone, why stack?

I believe you can turn off the Edge and just run the gauges part of it and allow you to just run the Granatelli if you like that better ... someone that runs the Edge can say for sure.