So sunday I am driving to the store and all of the sudden my truck is makeing the rattling sound thought it was a loose heat sheild, Let truck cool down and climbed up under her and found nothing loose but it sounded like it was coming from one of the front cats, SO I decided to drop exhuast system to check it out , Found that the pipe is cracked almost in half where cats meet manifold need to replace front catalytic converter anyone no who make the best onse Eastern or Dorsal will probably do the whole exhausted system now rar Cats and back anyone have the Dynomax Muffer or should I go Magnaflow

 

if the pipe is just cracked, why would it make a rattle? I would think it would sound like an exhaust leak.

I had a crack near my converter just last weekend. A buddy of mine welded it back up and it was fine.

 

Can't tell you why just made it sound like the inside of the converter had come loose and was rattleing on decell. But pipe is cracked big time I will try to weld it back first then go from there. Anyone replace there cats with aftermarket converter?