ok the last time asked about injectors for my mp5 .. i got mostly check the mazda sites well i did but everyone on these sites are runing mad boost i just want to run 5 psi just enough to make my car fun but safe enough to drive it every day with no and i mean no down time !!!

the question is can i run my stock injectors with 5 psi of boost ? and will a fmu and a adjustable fuel presure reg all i need? im willing to buy every thing i need but don't want to buy stuff that i don't realy need !!