The Jeep mods have been pretty quiet lately, but there have been some additions! The biggest thing was swapping out the stock exhaust, which was beat up, the joints were loose and squeaking and the engine sound was pretty pathetic. When we were in Moab in October we ran across
Chad H. in his built JKU with a Magnaflow exhaust... it sounded amazing when he was on the throttle. I was eyeballing that system, but it's pricey... around $800.
After looking into other options Hickey shared the Dynomax 'Quiet Crawler' exhaust, part# 39535. It uses their Ultra Flo muffler with a Race Bullet, all 2.5" tubing. The cost for the Dynomax kit is 1/2 the price of the Magnaflow kit. Total cost for the Dynomax Quiet Crawler is about $400, much more affordable.
The install wasn't hard at all, took about 90 min and the new exhaust was hung & clamped. I started it up and went for a spin and noticed that is was pretty loud and even somewhat annoying at 2,000 - 3,500 RPM when at any more than 1/3 throttle. The thing sounds 'raspy' and almost like a Honda ricer....
Hardly what I wanted and was expecting. Around town at light throttle the sound isn't bad, but when there's a load on the engine it gets pretty loud. I'm not too happy with it and it's far from what I expected a 'quiet crawler' exhaust to sound like. I will admit that I'm pretty picky about exhaust tone and was hoping to open up the exhaust and adding a little more healthy sound, without being too much.
Here's an after video.... running the Jeep thru the gears and on the throttle harder than normal, for the most part. I don't think the microphone on the GoPro picks up the sound like your ear would. The video makes it sound alright, but IMO it's more annoying than anything.
[video=youtube;5OWvJWuy8DY]https://www.youtube.com/watch?v=5OWvJWuy8DY[/video]
Dynomax offers a 90 day customer satisfaction guarantee... I'm going to drive this Jeep all weekend and see if I'm going to take them up on their offer.