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lbz07
August 13th, 2012, 12:54 AM
I am trying out tuning on the trans, i have an older tune from my previous duramax but need a stock tcm tune with the 25821031 os. Could anyone here possibly be able to help me out with one of these?

Thanks

killerbee
August 19th, 2012, 02:54 AM
email me for it.