Small Block V8 5.0L 5.7L Full Length Header with Metallic

The Dougs Headers D3321 is a full-length header engineered to provide significant increases in horsepower and torque across the entire RPM range, making it a choice for performance enthusiasts. Constructed from durable 16-gauge steel, it features 1.75-inch primary tubes and a 3-inch collector port. The flanges are a robust 3/8-inch thick and CNC machined to ensure an accurate fit and improved flow. The header is finished with a metallic ceramic coating, which acts as a thermal barrier to lower under-hood temperatures, protect against thermal fatigue, and offers superior corrosion resistance and a high-luster appearance. This header is specifically designed for 1982-1992 Chevrolet Camaro and Pontiac Firebird models equipped with small block V8 engines, including 5.0L (305ci) and 5.7L (350ci) displacements. Mounting hardware and gaskets are included for installation. It is important to note that header applications are based on original engine and cylinder head port centerlines, and raised port cylinder heads may cause installation issues. The product is also noted as being "exc. states w/Calif. emission stds," indicating it may not be street legal in California or states with similar emissions standards, unless used for competition purposes or on pre-emissions controlled vehicles. Reducers with O2 sensor fittings are available separately.