The 1979 z28 I have , I ordered from the factory. The exhaust is finally starting to fail at the back side of the muffler.I will need to replace from the catalytic y pipe back,but can't find the oem exhaust.I have kept this unit all original and only have 52,000 miles on it.
Does any one make the original exhaust any more? I don't want to change the sound that it has given since day 1.

 

try year one.. they will probably have it