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54 Posts
Has anyone noticed a off sound, loss of power or just seeming different truck idling and driving after a 4 inch ? I went to a 4 inch mbrp turbo back, the truck seems to be different. Is there some trucks that just don’t like it. Had anybody every day needed a custom tune for this ? I run the edge evo 2 but I’m gonna stop using it because my trans shifts are to hard. I am gonna keep it as a gauge cluster an get tubes from the sct x4