No matter the condition of your 1978 Bonneville, OPGI has the Air Filter Oil & Cleaners you need to boost performance and get you back on the road. We currently carry one Air Filter Oil & Cleaners to choose from for your 1978 Bonneville, and our Price Match Guaranteed prices range from as little as $31.99 up to $31.99. OPGI offers Edelbrock plus zero other trusted brands of Air Filter Oil & Cleaners 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 Air Filter Oil & Cleaners in person.