Questions about buying a FMU and injectors?

When I buy an FMU, can it be ANY one?

I’m looking at the Vortech FMU 12:1 increase… Should I get 12:1 or 8:1. Also while im posting… What injectors are needed. And where can i buy a MAP sensor bypass without making a ghetto one? is where you can get a missing link.

A fmu is designed to increase fuel pressure to compinsate for small injectors.The smaller the injectors the more fuel pressure you need when dealing with performance. The bigger injector the less fuel prerssure you need. So if you have big enouf injectors for your set up then you do not need an fmu.

the size fmu depends on how much boost you want to run and what injectors you use.