I know this is a repost , but I have to say, now that it is nice and chilly here in jersey, When I am flooring it on 295 in 5th gear I get up to 11.5 psi roughly. And man does it take off smoothly. Can't wait for these FREAKIN' stage kits. Come on GM!! GM could use the money now any ways

 

I always get 12.5 - 15 all the time.

 

no bypass mod

 

I got it up to 14. It sure likes that cold canadian weather.

100Kp

 

My Red Line hit 13 psi this afternoon on my way to work