No matter the condition of your 1970 Catalina, OPGI has the Manifolds products you need to boost performance and get you back on the road. We currently carry two Manifolds items to choose from for your 1970 Catalina, and our Price Match Guaranteed prices range from as little as $3.70 up to $295.99. OPGI offers CPP plus zero other trusted brands of Manifolds products for your 1970 Catalina, to help you find quality parts you can rely on. With OPGI's 45-day return policy, 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.