Im not real sure what my fasteners were then cause they were metal and a PITA to get out. I installed mine with the bumper on. I struggled some for sure but got it done. I have some leaks around the muffler though because the bend in the "C" pipes is just slightly off. Any suggestions on the "C" pipes or should I just cut and weld them to fit. I asked a few exhaust shops in the area but they said they can't bend something that tight
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