I am looking t get a new set of injectors. All the online stores such as Beans, and TDP have the stage 1, 2, and 3 injector choices What my question is, are there any injectors out there that are not the ones you see online? i saw a thread talking about 530E International injectors i believe. Does anybody have any info or personal stories about these? Or any other injectors that are not the stage 1, 2, or 3's?