I dont have a chip in my truck yet, but have seen them installed in others. From what has been explained to me by a friend who sells them #5 is pretty std with maybe a small tweak. If you have guages installed and are confident, play around and try all the settings. Any good reseller should also be able to re-tune the chip on a laptop with advice from the supplier (who im assuming would have tested the chip on the motor and should know its limits) and completly change the settings. My freind has done this on his cruiser and his factoy #9 setting is about his new #3setting, so it now has enogh power keep up with me.....lol
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