i hav a focus svt 03 and have it stock and what to put nos can i and if i could how much can i run with safe

as long as you do it right with window switch, WOT switch, and a tune, you can run up to a 75 shot.

And NOS is a brand and makes you sound all fast and furious, its nitrous.

.....or N2O if Nitrous is too much to type....lol

where can i get it tuned