No matter the condition of your 2004 CTS, OPGI has the Smog Components you need to boost performance and get you back on the road. We currently carry one Smog Components to choose from for your 2004 CTS, and our Price Match Guaranteed prices range from as little as $23.99 up to $23.99. OPGI offers Kooks Headers plus zero other trusted brands of Smog Components for your 2004 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 Smog Components in person.
Early Black Friday!