ECU location?

[Well-sy]

Hey folks.
 
im in the process of installing my new greddy turbo
 
Im coming to the point of installing the ecu piggy back and was wondering the location of the ecu in the passenger footwell. I know i have to drill through the firewall behind the washer bottle so I know its around there somewhere.
 
any help much appreciated

[Well-sy]

oh its an rx8 btw lol