my local jap wreck place had 11 cg13's to choose from when i went and saw them. picked one from a front cut they had, $900 for a 25,000k old engine and gbox! it was auto but so that was sold on
alex, the n14 and n15 boxes that will fit are from the GA16DE model. they are better geared than the micra stock box and if you cant find one of them im pretty sure the gear SET can be used in the micras housing from an n13 or ET the early n12 turbos