Dynomax Ultra Flo 19361 Exhaust System Kit for Chevrolet Tahoe

The media could not be loaded. This system was perfect. Sounds great. Install was easy . Fit perfect. So happy . Thank you . 2005 Yukon 5.3

Awesome exhaust sounds great. fitment was fine, tighten the clamps down with an impact.. no leaks

Not my first bolt on exhaust. I had a Borla hush on my 06 STI & the cat back exhaust had flanged ends, 2 bolts, 2 nuts, & exhaust gasket. Perfect fit, no movement after I installed, no exhaust leaks checked on it every oil change never came loose.I read all these reviews on this set up before purchasing, so I was already prepared to have it welded incase the fit was an issue. And it was. If you do a shake test afterwards, guaranteed the muffler will move. Imagine hitting a pot hole or going over speed bumps.Eventually it may fall out. An exhaust after installed should not be allowed to move. No matter how tight I got the clamps it would still move. I even tried a pipe expander, which helped a little bit. But still not a precise fit.As mentioned by RM in his review, the gaps between the muffler & the pipes are an issue. For this to be a true bolt on, the ends either need to be precisely machined to fit with no gaps OR have flanged ends.After I got this exhaust installed on my 04 Tahoe I left the clamps on & drove to a muffler shop a couple miles away. They got it up on the hoist & we could see the muffler was crooked. So they removed the clamps got it straight & welded it in, even the tip. $50 & done!Sounds great! Much quieter than my old dual exhaust flow master that was full of exhaust leaks & weird bends. I noticed increased HP & improved back pressure & gas mileage. Yeah my old exhaust was trash.This exhaust is nice & good quality. Has thick 3” piping all the way back. I installed new hangers too so should be good for years to come. Manufacture just needs to do something about the fitment or add flanged ends on the muffler & pipes.

The hardest part was removing the stock muffler and even that was not hard. The system fit perfect and sounds great not to quiet and not to loud just right.

I purchased this to replace a failed muffler on my 01 Tahoe, 4WD. I happen to have a lift, but it would be fairly easy to install this in the garage or driveway. The pipes were perfectly bent with the proper hangers in place, it even came with a nice chrome tip. I broke off one of the two bolts at the head pipe but the pressed in bolt was easily punched out and replaced with a grade 8 nut and bolt. All 3 pieces lined up like stock, clamped together with 'U' clamps. The entire install took me less than an hour. I was worried it might be loud, but it's quite docile. The Dynomax system was almost $200 less than a Flowmaster set up. I'm very happy.

Took 3 days longer than originally projected to get here, then once I opened the box it was missing the muffler and the tip.

I know there are several reviews out there that say "it's barely louder than stock" or "you can't hear it inside"... well let me tell you that is not my experience. The exhaust is louder than stock and you can hear it inside the vehicle. Having cleared that up I will also say the sound is not obnoxious or "loud". At idle it is only slightly louder than stock and at normal cruse speeds you can barely hear it inside. I would definitely buy it again.

Let me start this review by saying that I have been restoring cars and building hot rods for over 40 years as a hobby. My profession was aviation maintenance. I have probably dis-assembled, assembled or customized over 20 automobile exhaust systems in my day. This Dynomax catback exhaust kit is the worst fitting I have ever seen.Individually all of the parts seem well made for the price point. I will tell you up front that unless you plan on welding the muffler on (inlet/outlet) you will have an extremely high probability of exhaust leaks. The gaps between the pipe and the muffler fitment are huge. The cheap clamps provided are not designed to provide a 360 degree crimp on the pipe as there is a gap in the sides. The probable reasons that you do not see more negative reviews are;1- Previous kits had a tighter fit and this is just a bad production run 2- good enough for me 3- its loud and I like it 4- They cannot hear the leaks due to exhaust toneIf you look at the attached photo’s, this muffler to pipe union has a huge gap that has to be closed in order to seal. The photo with the word Dynomax on it is the one that Dynomax sent me (Quality / Engineer / Technical staff) stating that it was within tolerance and would provide a seal. I actually thought they were joking with me until I read their entire email.I will say that the individual I communicated with (email / phone) was very kind and respectful. He was basically tasked to deliver the bad news to me that the company has a low threshold of quality control, and that my 40+ years of wrenching just meant that I was asking too much from them.After several phone calls and emails, Dynomax did offer to;- Pay for getting the system welded, providing I got the cost authorized in advance- Send the kit back, have the pipes expanded, and then ship it back to me- Pay to have the pipes expanded locally, again pending cost authorization.Summary:I ordered the kit and it arrived. I test fitted the kit prior to installation and found the huge gaps in the muffler to pipe connection. I took photos with measurements and provided them to Dynomax. Dynomax in-turn sent me another kit (supposedly test fitted prior to shipment). New kit arrives with same gaps. Now Dynomax says the second kit is within tolerance according to the Tech/Engineer team. That’s when they sent the picture labeled Dynomax.If a pipe to muffler connection has a tolerance of .070 to .090 depending on where you measure, I just do not know what to say. Look at my measurements in the pics. I am not using a cheap caliper either. The muffler ends are approximately .070 too large, and the pipes are under 3.00 by .010 to .030 according to my caliper. This is the second, supposedly test fitted kit!I even mentioned to the responsible parties how this situation could lead to probable exhaust leaks from the gap and type of clamp used. If you look closely at the picture of the connection provided to me by Dynomax, there is the appearance of a gap between the pipe and muffler, as well as possible metal deformation and flaring of the muffler opening. It also appears mushroomed between the clamp and muffler body. In their email they stated that this was a test fit that passed prior to sending me the second, supposedly within tolerance kit.In the end I decided to have the pipes expanded locally at my cost. I actually expanded the pipes a total of .050 and still had looseness. I then ordered the clamps that should come with the kit (Dynomax provides the better clamps with other kits such as the 39311). Look at the Dynomax clamp 33272, or Roadformer 3” lap joint clamphttps://www.amazon.com/dp/B08169BC4X?psc=1&ref=ppx_yo2ov_dt_b_product_detailsI have installed everything from the cheapest Walker exhaust all the way up to very expensive Borla exhaust. This system is the absolute worst. What really shocks me is that the staff at Dynomax defends it and stands by the inferior fitment. They did offer to correct mine, but you might receive what I show in the photos. You have been warned.After expanding the pipes and purchasing better clamps myself, and 2-3 weeks of trying to work with Dynomax, the system once installed does sound good. As for Dynomax engineering / technical / quality control you can be the judge. I expect a tighter fitting pipe to muffler union on a tractor, much less an automobile. When you have a customer who gives feedback with pictures and measurements, and then disregard the “opinion” of that customer, do not expect repeat customers.