Shindaiwa has recalled the EB630 mufflers. THey have had a problem with the lower support breaking off and then the muffler exhausting fumes onto the gas tank. There is the potential to cause a fire. Mine broke about a year ago and it had put oil from the exhaust all over the gas tank before I realized the problem. There is also a recall for the Redmax 7001 muffler since it uses the same muffler.