Ok I am an ase certified technican for what that is worth.
I had a limited that I did injectors on, Intake and a tune done.
I added a sprint booster. The results were good. The throttle was definitely more responsive.
I did notice a lag and it was gone with the sprintbooster.
I then bought an srt6 off a forum member that ran a 11.8 1/4 mile.
The throttle felt sluggish compared to my limited.
Obviously the srt6 is much faster. We are just talking about throttle response.
I put the sprint booster in the srt and the throttle response was instantly improved.
I do not believe it would make one bit of time difference in the 1/4 however on a road course the lag reduction would help in some scenarios coming off a turn,ect.