Camaro/Firebird/Nova DETROIT SPEED LS Swap Headers1st and 2nd Generation F body owners who have opted for LS power can now get the same great ARH quality for their ride. Features include: 304 S S construction throughout, 3 8" flanges with hand ported inlets, fully welded custom sized merge collectors with scavenger and spikes standard, and your choice of 1 3 4", 1 7 8 or 2" primary sizes. Standard round port flanges or optional D port style also available upon request. Expect excellent ground