No matter the condition of your 1978 Malibu, OPGI has the Manifolds you need to boost performance and get you back on the road. We currently carry seven Manifolds to choose from for your 1978 Malibu, and our Price Match Guaranteed prices range from as little as $8.53 up to $379.99. OPGI offers Hedman Hedders plus two other trusted brands of Manifolds for your 1978 Malibu, to help you find quality parts you can rely on. With OPGI's 45-day return policy and thousands of customer reviews, you can shop with the utmost confidence. Enjoy parts delivered directly to your home, or visit our sunny Southern California Showroom & Warehouse to check out our Manifolds in person.