Cherry Bomb Extreme 7480 drove my 2012 jku Sport Limited (3.6). For those of you considering this option, do it! Smooth, deep, creaky or rather reserved. Your right foot/thin pedal controls the intensity of the sound - fuel consumption is reduced because I'm addicted to the sweet sounds of Cherry Bomb! No buzz, just guttural sweetness! I do a lot of off-road driving, this muffler lifts up and doesn't get in the way, but its length is just right for venting the exhaust out the back of the jeep. Sounds great when it's bare, sounds really good when the jeep is zipped up too! The jeep is moving!