For 1978, the Olds Cutlass downsized to stay competitive in the evolving domestic car market. While the malaise era G-bodies weren't great performers in stock form, the capable architecture they were built upon lent them to hot rodding. If your G-Body needs a shot in the arm, our LS swap systems can help you get the job done.

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.