TUNING
 

i have a 98 sti redtop import,
i have a turbo bk s/s exz
dump v
air filter
i am thinking about a slight boost turn up [couple l/bs] and a good tune up
any general advice do's or donts please
ive heard 1 psi increase=approx 10bhp?
will i b safe turning it up by 3psi