Sold alongside its Valiant sibling, the Duster added a two-door fastback compact car to Plymouth's lineup through the end of the muscle car era. Despite its small size, the Duster could be optioned with 318, 340, and 360 cubic-inch small blocks nestled between its A-Body frame rails. With our Gen III Hemi swap systems, you can drop some late model Mopar muscle in there too.

Holley is home to some of the top-performance exhaust brands in the world. Brands like Flowmaster, Hooker BlackHeart, Hooker Classic, Flowtech, APR, Dinan, and Flowmonster combine to cover thousands of applications and a variety of budgets. Whether you are putting a full stainless steel exhaust on your late-model muscle car or if your rat rod needs a set of Lakester headers, Holley’s exhaust brands have you covered.