My M45 has four catalytic converters, that have degraded. They are quite expensive over here in Lagos. I'm looking for away to used spacers on the O2S ports, as a means of deceiving the ECU in to thinking the Catalytic converters are functional. This is because I have read over the internet that spacers could be used instead of a catalytic converter, if emissions tests aren't the concerns of authorities.
In my locality, emissions passes are not a requirements, so I'm safe.
Has anyone ever tried using a spacer on their exhaust system? If so, how did you implement the the spacers on the exhaust manifolds?
Thanks while we await your replies.