These Southwest Speed long tube headers are a direct fit for 1964-1989 Chevy passenger cars with Small Block Chevy V-8 engines, and will work with both automatic & manual transmissions. The unique design of the collector location makes these headers a great choice for many GM passenger cars that include: 1965-1989 Impala, Caprice, Bel Air, & Biscayne, 1967-1981 Camaro, 1964-1987 Chevelle, Malibu, & El Camino, 1970-1987 Monte Carlo, and the 1968-1979 Nova.