Vibration from under car
So a few months ago I changed out my exhaust to divorced duals with slp lm1. Ever since, every now and them I get this really loud vibration under my car, that my passenger and passenger side person in the back seat feel on their feel. It seems like it happens mostly in second gear, oddly enough. Is it my exhaust jumping around? What can I do to fix this?
pypes x w/flow 40's, SR CAI, plasti dipped (emblems, stripe, rear decklid, rear valance, cowl vent grille, fuel door, antenna holder), shorty antenna, mach 1 chin spoiler, custom interior trim, blue LED interior lights, more to come later