Originally Posted by St3V3_C
Shouldn't the WI come before the setup

If you mean in terms of how the cars mapped, no IMO.
IMO Water Injection should only be used as a backup safety thing incase somthing totaly unexpected happens, deffo shouldnt be used as part of the setup of making the car reliable when being driven flat out, that should be taken care of by a properly specced car and good fuel and ign mapping.