I purchased this system for my wife's 2014 Grand Cherokee with the 3.0 diesel. First, the pros. The kit is well made, and installation is straight forward. The polished tips look far better than the factory tips. Now for the cons. There aren't any noticeable performance gains, or improvement in sound. In fact, at the higher rpm range the exhaust produced a very annoying, high pitched exhaust note. I didn't want to go back to the factory exhaust, so I added a pair of bottle style resonators to this kit which solved the problem. My recommendation is to spring for a kit that has resonators vs the straight pipe.