This seems to be an earlier design out of billet while the newer ones are using a swapped single serp belt pulley for the custom double serp belt pulleys.
Don't you need to change something with coding for it to be able to work without ac? I believe I read that the car limits rpm when low r134a level is detected.
I have not heard of the engine being Rpm limited because the G65 sensor is reading low pressure or in in fact not working at all because of open circuit etc, only a dtc for the issues and the compressor shuts off.
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