- Buick Ownership
- 72 GS 455 72 GS 455 Stage 1
just purchased a 72 stage 1 455 gs in pieces but all numbers and very complete. The car has zero rust and I have what appears to be the original exhaust manifolds with the two manifolds joined to a single exhaust pipe. Anybody heard of this? The bumpers and thru tips also came with the car so it had two exits for sure.