reading this thread from top to tail how do you know it isnt a 92 car that needs cat testing?

there can be a great need for closed loop. regadless of mapping, manufacturer's dont fit it for fun.

you clearly said "closed loop isnt needed if mapped correctly" and i disagree.

you always dive in saying its not needed...this thread has nothing whatsoever to do with closed loop and yet your favorite comment pops up again.


lol at "why am I talking of something not even related"...oh the irony

the m5 also has a sophisticated closed loop system, but i guess it doesnt need it? as it is very well mapped