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American Thunder Cat Back Exhaust System
2020 Chevy Silverado/GMC Sierra 2500HD/3500HD Trucks w/6.6L Gas Engine
Holley Performance Emission Code 5: This part is legal for sale or use on Emissions Controlled Vehicles; Uncontrolled (Non-Emissions Controlled) Vehicles; and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations
| Exhaust Type | Cat-Back |
| Exit Position | Dual Out Rear/ Dual Out Side |
| Inlet Inside Diameter | 3.000 in. |
| Material | 409 Stainless Steel |
| Tail Pipe Diameter | 3.000 in. |
| Tip Diameter | 4.000 in. |
| Tubing Diameter | 3.000 in. |
| Country of Origin (Primary) | US |
| Harmonized Tariff Code (Schedule B) | 8708925000 |
| Harmonized Tariff Code (HTS) | 8708925000 |
| NAFTA Preference Criterion Code | B |
| UPC | 00700042039760 |
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