No matter the condition of your 2014 ATS, OPGI has the Proportion Valves products you need to boost performance and get you back on the road. We currently carry five Proportion Valves items to choose from for your 2014 ATS, and our Price Match Guaranteed prices range from as little as $8.99 up to $99.99. OPGI offers CPP plus one other trusted brands of Proportion Valves products for your 2014 ATS, to help you find quality parts you can rely on. With OPGI's 45-day return policy and three 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 Proportion Valves items in person.