Get the Intake Couplers & Elbows you need to finish the custom intake or repair your existing intake on your 2008-2010 Ford 6.4L Powerstroke. Find a large selection of 90-degree, hump, straight, and reducing couplings. Manufactured out of rubber, silicone, or plastic, these couplers come in various sizes ranging from 3.5" all the way up to 6" diameter. Get high-quality brands like Vibrant, Grand Rock, AFE, and Fleece Performance at XDP.