| Model Code | Description | |
|---|---|---|
| 01 | 375.301, 375.303, 375.321, 375.322, 375.323, 375.351, 375.373, 375.374, 375.381 | ABOVE EXHAUST MUFFLER ROAD VERSION |
| 02 | 375.301, 375.303, 375.322, 375.323, 375.373, 375.374 | KEG-SHAPED EXHAUST EXHAUST PIPE BEHIND CAB SHORT LENGTH CABS |
| 03 | 375.301, 375.303, 375.321, 375.322, 375.323, 375.351, 375.373, 375.374, 375.381 | UPSTREAM OF ROUND MUFFLER STREET VERSION |
| 04 | 375.301, 375.303, 375.322, 375.323, 375.373, 375.374 | KEG-SHAPED EXHAUST EXHAUST PIPE BEHIND CAB LONG CAB |
| 05 | 375.301, 375.303, 375.322, 375.323, 375.373, 375.374, 375.381, 375.408, 940.203, 940.204, 940.205, 940.365, 942.162, 942.163, 942.165, 942.167, 942.307, 943.314, 943.317 | MUFFLER 175 L SIDE TAILPIPE AT REAR |
| 06 | 375.301, 375.322, 375.381, 375.408, 940.203, 940.204, 940.205, 940.365, 942.162, 942.163, 942.165, 942.167 | MUFFLER 175 L SIDE TAILPIPE AT REAR GGVS |
| 07 | 375.303, 375.323, 940.203, 940.204, 940.205, 942.162, 942.163, 942.165, 942.167 | MUFFLER 175 L SIDE TAILPIPE AT TOP |