does VAFC works on D16Y8 engine? please help

if my engine D16Y8 already done intake and exhaust, which changed the exhaust from 1.75" to 2" do i need to do anything to the ECU to let it know?

thanks for the help!

http://s1.postimage.org/jrb8byntt/4mceko5.gif

http://www.ozhonda.com/forum/showthr...16y8-with-vafc