What you can do is if you get a hook up on dynos… do like multiple runs each with only one mod so we can compare to stock baseline on how much actual increase is :D.
if you are confused. here’s an example
Dyno 1 - AEM intake, stock everythign else
Dyno 2 - RTHFC, stock everything else
Dyno 3 - I think you get the point now…
Shows actual hp for each individual mods 
well Pinky is on here now… dynod at 330whp @ 7 psi on a mustang dyno during the summer… got my boost controller and ready to pump it up to 20psi :P… and if i remember right Barney got the same turbos i have 
however sushsti and pmdawg are the ones we have to worry about around here for GTRs… and im sure there is a single turbo lurking somewhere that we haven’t seen yet 
I’d love to spectate…but wish i cud participate and be the only 300…haha im not willing to put my car on the strip any time soon…maaybee one day…wen it’s fit to do it lol