In his instence yes, It needs to be tuned for it if he is upping his boost with it. If you just run meth to cool the charge then no its fine.. When I run my meth (when i get it) I will just be using it at 15psi to cool the charge and help more against detination.
-George
p.s What tires were you using? I ran a 12.3 at 114mph on stock ecu and stock boost with Nitto 555R's on a cold day
-------------------------------------------------------------------- Old pic.. but w/e =)