No matter the condition of your 1968 Tempest, OPGI has the Mufflers & Resonators you need to boost performance and get you back on the road. We currently carry 113 Mufflers & Resonators to choose from for your 1968 Tempest, and our Price Match Guaranteed prices range from as little as $45.99 up to $567.99. OPGI offers Magnaflow plus five other trusted brands of Mufflers & Resonators for your 1968 Tempest, 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 Mufflers & Resonators in person.