PopaPork

iTrader: (4)

I have a borla cat back and in the past two months or so I'm gettin a nasty rattle from it that I've never had before. I've checked the clamps and the hanger for it and they seem fine. Sure when I bang on the pipes they move some but all in all they are pretty damn stiff and sound. I have noticed that the heat plate is no, probably always have, is reston on the one pipe. But like I said..I would assume I've always had this.

Anyone got any ideas where I should look also, or have any tips on how to silence this pest?

Uno99

iTrader: (2)

could be a blown baffle inside the muffler.

PopaPork

iTrader: (4)

How do I check this out?

Lithium

iTrader: (47)

Is this rattle at idle? or under certain rpm's?

jimmyblue

iTrader: (11)

Heat shield resting on pipe = buzz or rattle fairly continuous.
Heat shield closer than 1/2" = rattle under acceleration or
engine braking.

PopaPork

iTrader: (4)

sometimes at idle its slight its more when the car is at gear going at slow speeds.

Jimmy if it is the heat shield for the tank...how do I go about fixing this?

IMJ

iTrader: (1)

You need to adjust it loosen the pipe going over the axle and to the muffler it probably started a few months after you installed it huhh... its cause it settled oh yeah make sure its that pipe isnt resting anywhere else cause it will make a vibrating sound sort of like the heat shield sound...