Dynomax Super Turbo 39510 Exhaust System Kit for Jeep Wrangler

Honestly, I was skeptical because of the price. I wanted something quality, that wasn’t obnoxious. This muffler exceeded expectations.Packaging was perfect!I will say, I read a lot of reviews and I was worried about the difficulty of the OE removal. I was able to remove the driver side hangar pretty easily, but after fighting the passenger side for about 5 minutes I just cut the hangar off.Removing the muffler at least in my case was more of a workout than a struggle. I was able to get rotation out of it, and I took a flat head screwdriver and CAREFULLY pried up on the pinch points of the lap joint. With some tedious back and forth movements I was able to slip it off.Instead of cutting off the original clamp and reusing like some did, I purchased a 2.5” lap joint exhaust clamp which worked amazingly on this application. I used the supplied clamps for the tips, and I didn’t find the same issue a lot were having with the clamps not getting quite tight enough. Whether they fixed that issue or not, I’m not sure. It worked for me though.Another complaint I saw from other reviews was that the tail pipes were not level. Again, I did not have this issue, but I know that slightly tweaking the hangars in the right direction will fix this.The only complaint that I had was there were a few dings in the muffler body itself, which in reality doesn’t make any difference in this review. The tail pipes were perfect, the inlet was perfect, and that’s all that mattered to me.It sounds amazing. Just please take in to consideration that if you install this on a 2 door JK it will be significantly louder in the cabin, due to first, the muffler being closer to the cabin, and second, there being 3 feet less of exhaust pipe. Both of those make a huge difference in how this sounds.On a 4 door JKU (my application ‘16 JKU) it adds the perfect amount of volume, and a decent amount of throat. You only get what I guess you would call “droning” at just over 1000 rpm, and goes away at 1200 rpm. So let’s be honest… no droning.All in all, I think it’s a perfect muffler if you’re looking for a great look, with a little bit of volume. For $200.00 you can not go wrong. Beats spending $600.00+ on magnaflow, flowmaster, borla, etc.

My DynoMax showed up today. I installed it on my 2008 JKU. Very easy install. Took me less than 1/2 hour. Like everyone else who has left a comment. The hard part is getting the old muffler off. I cheated and used a sawzall to cut the hangers and the connection between the exhaust pipe and the muffler past the connection flange. I used a Dremel tool with a small cutting wheel, and carefully cut through the remaining portion of muffler attached to the exhaust pipe, making sure not to cut into the exhaust pipe. It popped right off. Total removal time was less than 1 hour. I set the new muffler on top of a box and slid the unit under the Jeep. I attached the muffler to the exhaust pipe. Perfect fit and location. I used WD40 to spray the metal hangers and rubber support hanger holes. Everything lined up perfectly and slid right in. It comes with a clamp to attach the muffler to the exhaust pipe. It also comes with two exhaust tips and clamps for the tips. I'm not sure I am a fan of the clamps. They seem heavy duty, but are a little awkward to tighten the exhaust tips onto the muffler. The sound is nice and deep, but not overly obnoxious. I bought this because it said it is made from stainless steel. My overall satisfaction will be determined by how long it lasts, but the price was right! My last muffler was a Walker stock replacement. It lasted less than 4 years and only 38K. I also keep my Jeep in the garage, which I would think would help with longevity. The passenger side hanger failed. It was also rusting, and hung down a little low. The Dynomax tucks up nice and out of the way.

I bought 2 of these, one for my 2007 JK and one for my wife's 2015 JK.I will echo much of what has been said on other reviews as far as removal and installation. I will say that both of my installs were not the same. I agree with using soap for ease of removing the old from the hangars.On the '07, it was as easy as it could be. I was able to get the old removed from the hangars with little problem. and removed the muffler from the pipe without any lube. It took a few minutes working back forth and rotating to get it off. The new one went on with zero problems and lined up perfectly. Mine does not have any chrome so I purchased a set of black tips for a much better looking match.The '15 was a different story. The right hangar was apparently a tad longer, which made it a lot more difficult to remove and I ended up just cutting the hangar. The left hanger was not a problem, just like on the '07. Other than the one hangar, the rest of the removal was like the other. This did increase the overall time for change. The new unit went on ok, but like many of the other reviews, it was not straight and level. The right pipe is a little lower and further back than the left. The fore/aft is easily compensated for with the tips, but the up/down is not. I believe I will be able to correct it but tweaking the hangar, but that will be a project for warmer weather.The sound is nice and does probably as well for a V6 as you could ask for. I would love to be able to compare it to a FlowMaster, but I can't. It has a nice tone and the volume and sound at highway speeds is hardly even noticeable.So far I am pleased with them. I've rated based on the product itself and its' install and not factored the removal of the OEM mufflers, since that has no bearing on the new product. I obviously can't attest to any longevity yet.