Ls6 into 2003 silverado 4.8, needs a tune
#1
My plan is to stick an ls6 into my 2003 silverado, that currently has a 4.8 and 4160. I know that I am far from being the first to do this, so I imagine there should be a few companies out there that can offer a reflash of my ECM.
Could someone point me in the right direction for more info?
Could someone point me in the right direction for more info?
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D1SCSS
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Jan 25, 2016 10:14 PM





