1971 to 1973 Chevrolet Vega - OEM Exhaust Pipe

[grandpatom]

Hello GM H-Body Owners from Colorado, Please check your 1971 to 1973 Chevrolet Vega used parts inventory when possible. I am currently seeking the OEM design exhaust pipe (approximate length 12.5') to use as a "pattern" for reproduction purposes. The original GM part number 3991375 has been long discontinued and the NOS part cannot be located therefore my search continues.

Thank you for your assistance!