I use LS Droid and PCM Hammer for the actual writing of the BIN file to a PCM. Several good You Tube videos explain them both, step by step. For every BIN that I've seen, Tuner Pro RT strongly cautions AGAINST changing the VIN with TP RT software. If I want to change the VIN to something particular, I use PCM Hammer for that - but I don't care about the VIN here in Louisiana in a vehicle that only has a 13 character long, pre-1981 VIN anyway.
Rick
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