Need Some Hellp

[almzro3e]

Hi dears

i had a littel problem i need to know what is the diffrenc between HKS FCD

and APEXI new becouse on of my friends was runing turbo on his vehicle

with APEXI new fuell computer after that some garage put for his car HKS FCD

and stoped the APEXI new so naw hwo could he rich the fuell and the APEXI new was not working ? is it make problem with HKS FCD?

his car working in good condition naw but he is thinking on more boost like 10 psi

and want to rich the fuell SO DEARS CAN WE USE hks FCD with APEXI new together?

and thnx am waiting you all dears