ok thanks for clearing that up. i plan on running synth, next oil change. i would mostly use the whisper mode for coming home late, not leaving early. now just to save up for a chip.
i plan on getting stock, 65tow, 80daily, 140race, whisper, and either smoke or high idle
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early 99 F250 7.3l 5in straighpipe exhaust, DIY intake, PI Stallion TC, Factory tuned valve body, guages, 3.73s, 8.5in lift 37s
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