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Okay, thanks for the info. I will dig around on there.

Okay so would it the be possibly to just use the '02 pcm with the '05 harness? Or better off flashing v8 file for the p59?
The '02 5.3 is also drive by cable.

Hey guys, Im planning an engine swap on my 2005 silverado 4.3 2wd. I have a 2002 5.3 I will be beefing up a bit. My question is am I able to load a tune from the '02 5.3 pcm onto the '05 4.3 pcm? Ive...