Currently fitting Gotech Mini X to my S2.

All the Gotech ECUs do away with the M/Head, Injectors etc.

The basic Gotech MFI & the Mini X are the only two which can use hall sensor if you wanna stick with a Dizzy
(Mini X can also run coilpack with a crank sensor fitted)

Obviously have to change to electronic injectors. With an EFI head just fit an EFI inlet manifold/fuel rail/fpr or, as I have, you can modify MFI inlet to take injectors with frst fuel rail/fpr.

Fuel lines are a doddle to sort, and all in, is probably the easiest/cost effective way to go EFI.

TPS, Dizzy, Water Temp, ACT, Coil and injectors wired up & your away.

Any questions just PM mate