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maalmull
April 10th, 2018, 08:28 PM
Hi all,

Can you flash a 2000 Ls1 pcm to work on a 03 Sierra?

Thanks,
ScarabEpic22
April 11th, 2018, 06:08 AM
No, the 00 PCM is a LS1B 512kb and the 03 needs a LS1B 1MB. The tunes will not flash between the different PCMs. I believe 03-05 (perhaps 03-07) 1MB PCMs would work in an 03 with the proper OS flashed.
maalmull
April 11th, 2018, 08:29 PM
Thanks