I've got a 02 plate import so it rempas itself to a certain degree i believe....? But no aftermarket remap no.....
Nope, it dosnt remap, its just got differences between wide and narrow band. Still wont adapt properly for the cats, putting them back in will have just caused the ECU to relearn to its normal setting. You will probably find you were running really rich.
If you put them back in, get it mapped and you will see a huge difference with the decats
I said this when I first joined. decats will work if its remapped to. Everyone is like no with back pressure and what not. Yes you do need back pressure on a na but if you look inside a cat you see why it is so restrictive. I even bought sports cats I could have put that money to a remap. Ahh well.