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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.
Doubt your 08 needs it but when you get higher miles on her it wouldn't hurt....with the EGR you'd be surprised about how much crap is recirculated back into the engine. I bet the back of your throttle body is already coated with carbon...mine was at 13k miles.