well my tuner is not recommeending these as too much mucking around, well a question for u all i have asked red drifter thanks for ur help but, my prob is at the moment car is so shitty off the line after remap i got a fmic,14psi( can xtract ne more with out fuel), hiflowed t3, xhaust,malpassi rising fuel reg, big fuel pump and all the other usualls, would i be better off getting a proper engine management or these injectors to cranck up the boost