No matter the condition of your 2005 CTS, OPGI has the Light Bulbs you need to boost performance and get you back on the road. We currently carry two Light Bulbs to choose from for your 2005 CTS, and our Price Match Guaranteed prices range from as little as $37.99 up to $67.99. OPGI offers Oracle Lighting plus zero other trusted brands of Light Bulbs for your 2005 CTS, 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 Light Bulbs in person.