I have noticed that after I used leaded race fuel that I have an exhaust rattle in the back near my muffler... I have no cat so I was wondering are these little lead ***** that are rattling in my exhaust? I checked the exhaust itself and I see no metal on metal contact... I have 272 cams so my idel is kinda ruff but still nothing in the back is touching anything. Seems to me like something inside the exhaust..

 

im hoping you arent using o2 sensors... if your running leaded..

 

Well I only ran 2 gallons of it.

 

well if its exhaust vibration on the oilpan or other part of the car try Kartboy hangers...

www.kartboy.com

 

It is in the rear by the muffler.

 

mine seems to rattle slightly when it rains..... only thing i can think of is the stock hangers stretch when they get wet.... im thinking about getting the kartboy ones

 

i would think the hangers would get more compressed when wet... and stretch when its really hot.