B18c1 Swap

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Junior Member
Hi everyone :)
Nice forum btw.. :)

So I'm about to swap a Gsr engine into my 2000 Dx Hatch and I need to know a few things.
I heard something about OBD2 2nd gen (99-00) code key problems.. anyone can help give me info on this.. I was told I'd have to get the Ecu from a 96-98 Gsr instead to go over this problem ?!
Then I need to know what is needed from a Gsr to complete the swap. For example, to I really need the Gsr Rad ?! WIll it fit bolt-on ?
What about the catalityc converter ?
Anything else I should know ?!

Thanx :D !!