No matter the condition of your 1978 Bonneville, OPGI has the Trunk Panels & Accessories you need to boost performance and get you back on the road. We currently carry six Trunk Panels & Accessories to choose from for your 1978 Bonneville, and our Price Match Guaranteed prices range from as little as $15.99 up to $499.99. OPGI offers QuietRide plus one other trusted brands of Trunk Panels & Accessories for your 1978 Bonneville, 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 Trunk Panels & Accessories in person.