Dynomax Ultra Flo 17263 Exhaust Muffler

Compact

Well made and looks very good. Installed on Mazda truck.

Good sound, easy install

I installed this in my 2012 Jeep two door Wrangler JK. I replaced the resonator with this muffler and removed the rear stock OEM muffler completely. The goal was to improve the sound while removing the heavy, unsightly rear muffler. I left the exhaust pipe that originally connected to the rear muffler and attached it to the Dynomax muffler. This allowed the exhaust to go over the rear axle and then dump out just before the rear bumper while remaining high and tucked out of the way. On the two doors, there is only just enough room for this muffler. If you have a four door then there would be plenty of room to even add an additional resonator if you want to tone down the sound a little more.I feel like the sound is much better, especially on start-up and low rpms. It gives a nice rumble without being too loud. My opinion may be slightly skewed because I drove the Jeep for a week with just the rear muffler removed before installing this and it was obnoxiously loud. My wife still thinks it is a little loud. I think what impressed me most was that while it rumbles on start-up and low gears, the sound is not really noticeable at highway speeds. I have been driving it for a week with no top and no doors and I am getting no "droning" sound at highway speeds even with no resonator.I had this muffler welded on by a local muffler shop and the guys there were amazed. They said it was the best sounding JK that they had heard. After driving it for about a week now and comparing it to other Jeeps, I would have to agree. I get a huge smile on my face every time I start it up. This may not be the first mod that people think of for their Jeep, but it is absolutely one of my favorites.***********************************************************************************************************************************************I rely on reviews when I make purchases so I put a lot of time into reviewing everything I buy on Amazon for personal and my business. Please show your appreciation by clicking the "helpful" below when it asks if the review is helpful!!!

This muffler sounds great. I installed it on a 2015 Wrangler JKU. Very low, bassy sound at idle, mid-throttle sounds OKAY, and nice wail up top. Nearly silent at cruising speed. Here's a writeup on how I installed it:Jeep Life Hack of the Day: Cheap, EASY, DIY ExhaustJust thought I'd share this exhaust hack with you that will get your 3.6 sounding MUCH better for less than $100Items you'll need:2. Dynomax 17263 Ultra Flo Muffler ($60-70)https://www.amazon.com/gp/product/B000CIV5RC/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=12. 2 2.5" band clamps ($7-8 each)https://www.amazon.com/gp/product/B000CQHUYG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=13. Reciprocating saw or portable band saw (band saw gives a much cleaner cut line)4. Some Wd-40 or PB BlasterFirst, remove the stock muffler, aka "the full diaper," it's just one bolt, pull the two hangers out, and some twisting (this is where the Wd-40 comes in handy). Next, measure the length of the new muffler (just the body portion), this one was around 16.5" or so. Make cut marks around the resonator, roughly .5" longer than the measurement of the body (to give you a little play when you sleeve the pipes). Cut the resonator out and sleeve the new muffler into the freshly cut ends of the pipes. Wrap each end with the band clamps, tighten them down and yer done!The stock pipes themselves work great, when you take the original muffler off, you'll see the pipes dump out just after the rear axle, which is a great spot.The whole process will take 20-30 minutes (or longer if the old muffler fights you), and there's no need to remove or lower the exhaust to do the swap.Note on Expectations: It's not going to sound like a V8, but it'll sound MUCH better than the stock muffler—plus, you'll actually be able to hear the exhaust, a key if you drive a manual.I give the new sound a solid 6.5/10, vs the stock sound of 1/10.Have fun!