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4th Gen Ram Tech2009 - 2018 Rams and the 2019 Ram Classic: This section is for TECHNICAL discussions only, that involve the 2009 - 2018 Rams and the 2019 Ram Classic. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
i wouldnt remove the cats. 1st its illegal and 2nd the hemis (if thats what u have) like some back presure. i ran no muffler for a day and it didnt like that at all