a small buzz when accelerating just started when accelerating. haven climbed under to look at it yet, but when they start doing that, is it best to replace or like bend it so it isnt touching whatever its touching?? I know they arent rusty, my guess is a rock bent one...
sohc

 

it could be a loose bolt find the spot that needs to be tightened or if one is
missing or just take the whole shield out

 

clamp the shields together with the screw style, stainless steel hose clamp. I put one large clamp in the center of the cat converter and up to 3 clamps on the pipes.