I stacked the EZ with the HOT Juice/Attitude and it worked fine. I did have the TC/Trans, FASS and SPS66 mods below before I really turned everything up all the way. But the EZ does add the low end that is somewhat missing from the Juice.
The stack was very consistent, smooth power with no code or driveability issues. The HOT Juice/EZ stack was very good at keeping EGTs very much under control also.
That stack with the FASS and SPS66 dyno'd around 475rwhp and ran consistent 13. 8s 1/4 at the drag strip strip.
With stock tc/trans, lp and turbo need to be careful if you run over Hot Juice 4 and EZ 2.