mount the box under the brake booster , under the intake manifold , inside the car on the firewall, on the side of the inner frame rail or rear crossmember , come on man get creative , your best bet for way nicer injectors than anything u listed is mk3 supra turbo 440's are made by denso and are way better injectors than anything u listed but u still need a resistor box but they tune and idle really easy and can be had on the dirt cheap but u gotta get the clips with them