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 proud to be the home of some of the biggest names in aftermarket exhaust and to be a leader in domestic engine swaps. With brands like Hooker Blackheart, Flowmaster, and Flowtech, Holley has the perfect exhaust system for your ride. Whether it is a classic muscle car, late model muscle, truck, or Jeep, we have the exhaust systems available to make your ride stand out from the rest and perform at its best.