I know that the flex pipe and the cat are built together. Has anyone seen if this typical rattle under load in that area, I need to find a resolution. I want to go with a High flow one and an updated flex joint but not sure where to start. Has anyone ran across this problem.
The rattle you are getting is the heat shield not the cat itself,
unless of course you beat the tar out of it w/ a hammer and knocked all the substrate loose, and you got a big piece flopping around in there.
2002 White GP SE 3100 Tinted Tails soon to be De-Badged as well as a coming 3400 top swap.... To Be Continued......