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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.
teh average gain in mpg with a CAI and nice cat back exhaust system with a good flowing muffler like magnaflow will give you anywhere from a .5-1.5 mpg gain. But then again when you put that exhaust like me i cant keep my foot off the gas