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#2 (permalink) |
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3.8 Liter V6
Join Date: Jun 2005
Drives: GMPP ZZ383
Posts: 479
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Re: Performance programmers for T900 trucks
I don't have a GMT900, but I have a 2006 suburban Z71 that I've programmed with a superchips programmer. I like it. However I've been running E85 lately and I returned it to stock to be safe. I wasn't sure if I could run performance setting using E85 instead of 91 octane unleaded.
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