Find a huge variety of Silicone Couplers & Boots you need to finish your project 2020-2022 Jeep Wrangler JL 3.0L EcoDiesel. You�ll find straight, reducing, hump, and angled boots ranging from 45 to 90-degree bend to choose from. These rubber or silicone boots offer greater longevity as they are reinforced for strength. These boots come in a range of sizes from 2� to 6� in diameter to fit almost any application. Vibrant, PPE, Full Send, and Mishimoto are the brands available at XDP.