B3 128 B3 128 V 1978 X 231A EXHAUST SYSTEM 1 3 609 PIPE Front 1254070 I 2 3 685 CONVERTER Ctltc 8998163 3 690 HANGER Conv 1258556 B 3 3 609 PIPE Rr 466584 I 4 3 701 MUFFLER W Tail Pipe 1258813 3 704 HANGER Muff RH 1249913 1 3 704 HANGER Muff LH 1260788 I fil v B3 129 B3 129 l Q 1978 X 305U EXHAUST SYSTEM B 1 3 609 PIPE Crossover 459988 2 3 685 CONVERTER Ctltc 8998163 3 690 HANGER Conv 1258556 Q 3 3 609 PIPE Rr 466584 4 3 701 MUFFLER W Tail Pipe 1258813 I 3 704 HANGER Muff RH 1249913 I 3 704 HANGER Muff LH 1260788 I I I GM PARTS DIVISION GENERAL MOTORS CORPORATION BUICK 41A 9 80 3 103 3 000 GROUP