Parts Information
| Part | Manufacturer | OEM Part # | Price | Notes |
| Muffler | ||||
| 6 1/2 Box | ||||
| Federal | ||||
| Crew Cab | GMO | 15798948 | 1301.45 | |
| Extended Cab | ||||
| Without Heavy Duty | GMO | 15798962 | 1431.47 | |
| With Heavy Duty | GMO | 15798954 | 1423.71 | |
| California | ||||
| Crew Cab | GMO | 15798948 | 1301.45 | |
| Extended Cab | GMO | 15798946 | 1286.32 | |
| 8 Box | ||||
| Without Extended Cab | ||||
| Without Rear Exit Exhaust | ||||
| Federal | ||||
| Without Heavy Duty | GMO | 15147356 | 1228.46 | |
| With Heavy Duty | GMO | 15798950 | 1284.04 | |
| California | ||||
| Without Heavy Duty | GMO | 15147356 | 1228.46 | |
| With Heavy Duty | GMO | 15798950 | 1284.04 | |
| With Extended Cab | ||||
| Without Rear Exit Exhaust | GMO | 15798949 | 1289.35 |