05 catalytic- Do I need to replace pipe assembly too?

I have an 05 which has a clunk noise in the driveline and a rough feel. I\\'ll need two new catalytic converters. My question is may I leave the pre - existing rear pipe assemblies. I can get two .. The right and the left catalytic converts for 225.00 ...

the aerial very safe assurance, even one thousand aircraft is out of control, also won't appear so the tragedy of the plane crash "machine".

top rc

you do not have to replace the pipe assemblies as long as you can disconnect the catalytic converters from the pre-existing pipe assemblies.. if they are rusted and you must cut them off then you can still join together with a pipe insert. Save your money .. just get the cats... if you are sure you need them only .. you may have a fife rent issue