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Port Injection (96+ / OBD-II)
> 98+ 5.7 Vortec using HP Tuners
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98+ 5.7 Vortec using HP Tuners
03-14-2011, 06:10 AM
Does anyone use HP Tuners to tune their 5.7 vortec? I am working on a 99 Denali for a friend and cannot seem to find much on tuning these.
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