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#1
08-29-2005, 03:24 PM
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Anyone ever used a hypertech or superchip programmer on a 7.4L Vortec Engine??
This morning I purchased a 1998 Chevy Crew Cab 3500 Dually with the 7.4L vortec engine and auto transmission. Has anyone ever reprogrammed one of these with a hypertech or superchip or equivalent programmer and had any luck increasing fuel mileage, power, Torque, etc. Thinking of purchasing one and wondering what everyone's experience was with these things??? Thanks!
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