No matter the condition of your 2018 CTS, OPGI has the Washers & Nuts products you need to boost performance and get you back on the road. We currently carry ten Washers & Nuts items to choose from for your 2018 CTS, and our Price Match Guaranteed prices range from as little as $4.99 up to $23.99. OPGI offers Eddie Motorsports plus one other trusted brands of Washers & Nuts products for your 2018 CTS, 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 Washers & Nuts items in person.