Find a wide array of Silicone Couplers & Boots to finish your custom intake on your 2007.5-2018 Dodge 6.7L Cummins. You can find couplers ranging in size from 2” all the way up to 6” diameter. Constructed with durable rubber or silicone, these couplers are also reinforced for greater reliability. You’ll find straight, reducing, hump, and angled boots ranging from 45 to 90-degree bend to choose from. With high-quality brands like PPE, Vibrant, Mishimoto, and Full Send, you’ll find what you need at XDP.