Needed to replace the OEM muffler on our V8 Grand Cherokee --- after some research online I settled on this Dynomax Super Turbo --- it fitted perfectly and I used that OEM exhaust pipe as was, still in tip-top shape. I like the sound --- the tone is just a LITTLE different than stock. Honestly, with the windows open at highway speeds, you'll never know it's out of stock. It has a really BIG/LOW TONE AT HIGH ACCELERATION. I used Borla, Flowmasters. Corsa and Magnaflow on other vehicles and they were pretty LOUD. If you want to be heard/noticed when you arrive, this Dynomax is not for you. But as someone else said, if you like listening to the radio while driving, this is a good choice!