The reason 02 is given as the limit is because the Can bus system that can along with the 7.8 was already in the car at the time.... can bus in the 7.8 ran the PSM, Cruise, ABS, Cluster, and the AC control Unit... the 01 986's had some can bus.... to the cluster, but not the others. In order to get the 7.8 3.6 into your 7.2 boxster you will need a 7.8 DME, reflashed to 3.6 engine management, and have to re-pin the harness to match the new DME layout.... you can get MOST of the info from the Bentley... it has 7.8 pin assignments, but they are a little off at times.... the bentley however does not have wiring diagrams for the 7.8, only 7.2....
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