good morning guys today I got a gm pick up to fine tune and I proposed to the client to give a fine tuning to the program also the problem is that I can't find the .xdf for the .bin the ecm that it brings is a 16197427 with a memcal [bwzh] It is a 1998 GM and I don't find anything specific for that .bin can be reprogrammed .... I also have another echo is 16197427 [bltm] I think what is a 94-95 could be exchanged ???? and likewise I don't find a specific .xdf for that memcal ... it is in your hands gurus of efi tuning