No matter the condition of your 1986 Bonneville, OPGI has the Manifolds products you need to boost performance and get you back on the road. We currently carry five Manifolds items to choose from for your 1986 Bonneville, and our Price Match Guaranteed prices range from as little as $82.99 up to $379.99. OPGI offers Hedman Hedders plus two other trusted brands of Manifolds products for your 1986 Bonneville, to help you find quality parts you can rely on. With OPGI's 45-day return policy and one 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 items in person.