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  1. 2018 Dodge Charger 5.7L RT

    Performance Modifications
    Hey so quick question I was thinking of going catless straight pipes on my 2018 Charger 5.7L hemi, I was told to get a tune done after doing so. My question is, would going e85 tune be better than going 93 Octane tune? Or is there a better tune for a 2018 catless straight pipe charger RT? If so...