Sti4 SUPER SPORTS ECU by "PROVA" Japan

its in the for sale and looks promising im sure the sti 4 is a 97 model which is the same as mine cause they both have the 3 port solenoid. i spoke to the person and he said it runs upto 1.5 bar which is great but i no my cars internals wont take that so about 18psi is fine for me.

can i use my dawes device to control the boost on this ecu and will i need to crank the fuel pressure up to cope with the extra power