I have a MF2 box, and bits an pieces and a cossie yellow injector, which I am told is pretty much all i need really to fit in to the RST lump in my RS1600i, is it worth fitting a fifth injector? i thought its an ideal way to get a bit more power, i have currently have a standard t3 on it, with a stage 2 chip and pace chargecooler, so i thought maybe add the fifth injector and get it mapped then wack the boost up? is this a good idea?