Find the Intake Couplers & Elbows you need to complete or repair the cold air intake system on your 2020-2022 Jeep Wrangler JL 3.0L EcoDiesel. These couplers come in various sizes ranging from 3.5" all the way up to 6" diameter and are manufactured out of rubber, silicone, or plastic. Couplers are offered in reducing, 90-degree, hump, and straight for various needs. XDP carries top manufacturers such as Fleece Performance, Vibrant, Grand Rock, and AFE.