Scavenger Series Elite Header Fits 1964-1972 GM A-Body LS1/LS6 SB Engine, V8, Long Tube Headers, 1-3/4 Inch Primary 3 Inch Ball-Flange Collector, 16 Gauge Tubing, 3/8 Inch Flange Silver Ceramic Coating 409S Stainless Steel - Flowmaster - 814116 | Black Sky Diesel