I know... but when I compare stats of my non PP car to PP's, I am not convinced. Look at my video on youtube :
Non-performance package 0-60 (96km/h) :
http://www.youtube.com/watch?v=j9FPpM6DR_w in 4.5 sec.
0-60 starting from a 1mph roll and it does it in about 4.5 seconds with only Livernois stage 3 at that time.
When I look at other videos of PP cars, they seem slower : See inside video of Darreli's car with PP and tuned by Livernois (before all his other mods) :
Performance package 0-60+ (watch it at 0:33 sec.) :
http://www.youtube.com/watch?v=Rx_B0O2yClw in 4.9 sec.
At the track, I launch between 1.9-2.0 60ft. and do 13 sec. flat ad had trap speed of almost 109mph many times...
I have not seen any PP cars with only a tune go faster and very few have gone under 13 seconds with again, just a tune... There is that one video from Livernois showing 12.78 at 110mph (with PP, stage 4, CAI, HR and exhaust) and 12.98 (stage 2 and I believe CAI)at 105mph... Beefcake 12.75sec at 108mph with just a tune but a bit more aggressive on the boost...
I am just saying not to expect too much in terms of numbers from the PP that's all... After all, it depends if the cons are offset by the pros of having a shorter gear ratio... and for SA561 that started this thread, it will depend on the deal that he's gonna find because less likely will he find a great deal on a used 2010-11 PP SHO compared to the many non PP for sale.