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  1. Chevy Silverado Forum (GMC Sierra)
    Hello Everyone! New to this site. Long time vehicle enthusiast light mechanic skills. Recently installed the Diablo sport intune i3 on my 16 silverado. Using the Preset 93 octane tune running 93 octane gas. It ran great for a little while(Didn't Note the install date).... so its been a few...
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