I guess this is more toward tuners but which chips/tuners defuel on shifts?? Predator?? Hypertech?? Quad??

And did the tuners/chips on the LB7 defuel on shifts?? If not it could still live @ +90hp?

im pretty sure most of them defuel, its just a matter of how the defueling is programmed as to how much of it you will or wont feel, some programs are just down right ugly in that department and others do a better job, and the edge which allows you to manually adjust that setting

From my experience, the Bullydog Powerpup and the Hypertech doesn't defuel between shifts. My Banks 6-gun defuels quite a bit on L5 and L6, but not on the four lower levels. They tranny does all it can to keep up with the shifting on those top two levels.