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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
By chip I am guessing you mean programmer. I would say superchips 3714 or I believe the 3715 either one works with the 03 hemi. I paid 225 for mine brand new shipped. You might find one used on ebay just make sure it is not locked.