m50 convertion w/ m42 cluster

[MIKe30]

i believe you just need to swap the 4 cylinder coding plug in your cluster, for a 6 cylinder coding plug from an e or i m20 car.

[zav3n]

i just finished my m50 swap and it is amazing but the rpm's are way off cuz it is the m42 cluster. i was wondering if had to get a 325 cluster or i heard that there is a chip that i could change w/ the 325i one in the back of the cluster .
thanks
-zaven