1pc driveshaft = timeslip improvement??

[Buddafucco]

I know people have switched from their old 2pc to a 1pc driveshaft and then gone to the track. Anybody have any timeslip #'s from before & after to share?
60ft's maybe. :burnout:
I did a search but it came up with mostly vibration crap & for sales.

 

[need new tires]

on a bpu 1jz it yeilded .2 tenths improvement

well that was all that was changed but i think it had to do more with the driver getting more track time. it was his 3rd time and 8th pass ever in the 1/4.