Cast Iron Resonator for GMC Sierra from Mexico
Cast iron resonator chamber for GMC Sierra trucks that attenuates mid-range exhaust frequencies before the muffler. Under HTS 8708.92.70.00 as a cast iron exhaust system part for heavy-duty pickups. Its robust design suits high-performance diesel variants.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Acoustic performance data helps prove exhaust function over general castings
• Mark with heat-resistant paint specs compliant with automotive standards
• Separate from catalytic converters to avoid hazardous material declarations