does cat ever need to get replace? the one is on now is pretty freaking old and small, it have 160k miles on it too.

hmmm pretty tought decision
spend $20-50 :thinking: for them to make a extensions and still have an old rusty restricted cat

or

spend 100-220 for a new better flowing cat? but the question is would a gsr cat fill in the gap between the gsr header and the skunk2 cat back exhaust?