Exhaust Adapters will help your 2014-2018 Jeep Grand Cherokee 3.0L EcoDiesel add the larger tip onto your stock exhaust. Y-pipes and exhaust reducers typically start at 3.5" and go all the way to 7" in diameter so that they can be used in a wide variety of applications. The adapters are available in stainless and aluminized steel to ensure they match the proper application and climate. Find top brands like MBRP, Silverline, and Magnaflow today!