No matter the condition of your 2018 CTS, OPGI has the Air & Fuel Delivery products you need to boost performance and get you back on the road. We currently carry 22 Air & Fuel Delivery items to choose from for your 2018 CTS, and our Price Match Guaranteed prices range from as little as $12.99 up to $473.99. OPGI offers FiTech plus nine other trusted brands of Air & Fuel Delivery products for your 2018 CTS, 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 Air & Fuel Delivery items in person.