Compatible with 1966-1974 Chevy/GMC 1/2 & 3/4 & 1-Ton 2WD & 4WD, 1967-1974 Blazer/Jimmy 2WD, 66-1972 Blazer/Jimmy K5/Suburban 4WD, 73-1974 Blazer/Jimmy K5/Suburban 2WD & 4WD: 283-400, Tube Size 1.5 in., Collector Size 3 in.; Flowtech headers are the perfect combination of performance and value. Flowtech long tube headers are precision engineered using mandrel bent tubing, formed collectors and 5/16 in. flanges with sealing rings for a leak-free seal. All mounting hardware and gaskets are included for a simple installation. This header is coated in a high heat and corrosion resistant metallic ceramic thermal coating that increases exhaust velocity and reduces underhood temps for increased performance.;
Fuel Economy From The Engine Leak Test For Max Performance Ceramic Headers Rust And Corrosion Resistance Mandrel-Formed Power Plenum Leakproof O-Ringed Port Seals Include All Mounting Hardware Works with power steering and power brakes
