now this is going to sound weird, so fair warning,

i add a cat onto my exaust system for the stink, now i get this high frequency vibration from the exaust sound, and it shakes my floor boads and my feet go numb after 15 munites of driving. is there anything i can do?

 

see if you got any broke hangers maybe?

 

move the cat away from the floorboard.

 

i look for the hangers, but i think he is right about close to the floor boards, it was about the only place i could put it.

 

i am thinking about putting dome dynamat above the CAT with soem heat shield over it , would this help any