No matter the condition of your 2009 STS, OPGI has the Camshafts & Valvetrain products you need to boost performance and get you back on the road. We currently carry one Camshafts & Valvetrain items to choose from for your 2009 STS, and our Price Match Guaranteed prices range from as little as $24.99 up to $24.99. OPGI offers General Motors plus zero other trusted brands of Camshafts & Valvetrain products for your 2009 STS, 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 Camshafts & Valvetrain items in person.