No matter the condition of your 2003 Escalade EXT, OPGI has the Intake Manifolds you need to boost performance and get you back on the road. We currently carry one Intake Manifolds to choose from for your 2003 Escalade EXT, and our Price Match Guaranteed prices range from as little as $28.99 up to $28.99. OPGI offers RESTOPARTS plus minus one other trusted brands of Intake Manifolds for your 2003 Escalade EXT, 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 Intake Manifolds in person.