The Damyprd Air Cleaner Adapter (#2176) is engineered for automotive enthusiasts seeking a reliable upgrade for classic muscle cars and performance vehicles. Crafted from high-strength nylon polymer, this adapter withstands extreme engine temperatures while maintaining structural integrity under high-pressure conditions. Its tapered internal passage design minimizes air resistance, allowing smoother airflow from the air cleaner to the carburetor – a critical factor for optimizing combustion efficiency and throttle response. **Key Technical Highlights:** - **Exact Dimensions**: 2 5/8 inch (66.7mm) base opening, 4bbl-to-2bbl conversion ratio. - **Material Science**: ISO 9001-certified polymer with glass fiber reinforcement, weight reduced by 40% vs. metal alternatives. - **Tested Compatibility**: Validated on 1965-1989 Chev rolet Cam aro, F ord Must ang, D odge Charger models. Whether restoring a vintage vehicle or tuning a street racer, this adapter eliminates the need for custom fabrication, saving hours in garage labor. Install in under 10 minutes using the included corrosion-resistant hardware kit.