| Rear Muffler |
| Model | Description | Parts No. | List | Net |
| 318i, E30, 1984-1987 | Rear Muffler | 18 12 1 177 884 | $531.00 | $227.60 |
| 318i, E30, 1989-1991 (M42) | Rear Muffler | 18 12 9068 568 | $559.00 | $286.00 |
| 318i, E36 (M42) | Rear Muffler | 18 10 1 728 581 | $415.00 | $377.00 |
| All 318ti | Rear Muffler | 18 10 1 247 442 | $507.00 | $364.00 |
| 325i, E30, 1987-1991 | Rear Muffler | 18 30 1 707 046 | $459.00 | $316.26 |
| 325i, E36, from 1992 | Rear Muffler | 18 10 1 737 491 | $663.00 | $435.00 |
| 535i, E34, 1989-1993 | Rear Muffler | 18 10 1 712 812 | $375.00 | $357.50 |
| Center Muffler |
| Model | Description | Parts No. | List | Net |
| 535i, E34, 1989-1993 | Center Muffler | 18 10 1 712 812 | $400.00 | $325.00 |