We have for sale an S14a ECU fitted with a Type 4 Nistune board.
The Nistune has a map on to suit:
Stock T28 turbo @ 1 Bar boost
Stock injectors
Stock AFM
FMIC
Walbro fuel pump
Tubular manifold/Decat
This setup worked very well on the car it was removed from and made good strong power.
The ECU comes with the IMMU box and the correct chip key so this can be fitted to your S14a and used right away.
Plenty of information online about these ECU boards but I will help if I can?
£225 delivered.