I’m running devils own kit for over a year now, excellent kit, fitted it myself didn’t take more than half a day to do.
The map is for borderline in terms of advanced timing without water meth literally just before detonation and i use the meth to make sure everything is safe. On a normal ko4 set up i was running 378BHP but I’m rebuilding my engine so i may try for more....
you need a flex fuel sensor to run meth directly to your tank which you can only get so far on a standalone ecu.
The other difference is that Meth benefits us byallowing meth to mix with the water and air in the inlet to proceed to the cylinder, this start the cooling process, however with direct port injection which is what we have the injector will not achieve this as the fuel is pumped in practicly on spark. so directly putting it in the fuel will not get you the same effect in theory.