2015 Yukon XL Denali with bad muffler

[Doubeleive]

I looked into it and since the stock system is so large shipping is >$250 making it not much cheaper then the dealer.

So if I went aftermarket I don’t want too loud. Wife was already unhappy when I went aftermarket for the air intake on her daily driver. Suggestions?


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anything with 3 chambers or more are fairly quiet, I bet you could pick up a used oem one from a wrecking yard for much less than what the dealer wants, you would just have to have it welded in by a muffler shop, I see a used complete oem one on ebay in Illinois for $375 but there wanting to ship it freight, I am sure you could get just a muffler alone for less

 

[humer101]

I looked into it and since the stock system is so large shipping is >$250 making it not much cheaper then the dealer.

So if I went aftermarket I don’t want too loud. Wife was already unhappy when I went aftermarket for the air intake on her daily driver. Suggestions?


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My wife was the same I the beginning and now she gets used to, she wants more lauded.
How crazy is live?


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[StephenW]

So I looked at aftermarket mufflers. Does flowmaster make one for the 6.2L Denali? Can’t find it in their website.


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[iamdub]

So I looked at aftermarket mufflers. Does flowmaster make one for the 6.2L Denali? Can’t find it in their website.


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I wouldn't get a baffled aftermarket muffler as most Flowmasters are. Yes, they make chambered mufflers but you'd be hard-pressed to find informative reviews and it'd be a crapshoot on your rig.

The Magnaflow 12589 has always been the safe go-to on our trucks for a quiet, stock-like sound. It's currently $128 on Amazon:

https://www.amazon.com/MagnaFlow-Ex...gnaflow+12589&qid=1567866040&s=gateway&sr=8-3


Or, for about half that, you can get it's equivalent knock-off. Currently $58 on Amazon.

https://www.amazon.com/AP-Exhaust-P...rds=ap+xs2589&qid=1567865904&s=gateway&sr=8-1


I have the knock-off of the one that's one step louder than the 12589 and am thoroughly pleased with the quality of it's build and it's sound.

 

[StephenW]

I wouldn't get a baffled aftermarket muffler as most Flowmasters are. Yes, they make chambered mufflers but you'd be hard-pressed to find informative reviews and it'd be a crapshoot on your rig.

The Magnaflow 12589 has always been the safe go-to on our trucks for a quiet, stock-like sound. It's currently $128 on Amazon:

https://www.amazon.com/MagnaFlow-Ex...gnaflow+12589&qid=1567866040&s=gateway&sr=8-3


Or, for about half that, you can get it's equivalent knock-off. Currently $58 on Amazon.

https://www.amazon.com/AP-Exhaust-P...rds=ap+xs2589&qid=1567865904&s=gateway&sr=8-1


I have the knock-off of the one that's one step louder than the 12589 and am thoroughly pleased with the quality of it's build and it's sound.

It fits the Denali? Can’t find a fit page on amazon for it.


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[humer101]

It fits the Denali? Can’t find a fit page on amazon for it.


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Something doesn't seem right here.

[emoji848]

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[iamdub]

It fits the Denali? Can’t find a fit page on amazon for it.


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It's not a direct fit as in, exact dimensions of the stock one. I believe your muffler configuration is the same center inlet/offset outlet as the previous generation(s). This muffler is that same configuration but a little shorter than the stock one, so it'll just need a short piece of pipe (scrap the muffler shop would have laying around) added to make up the difference. I posted Amazon links for both mufflers in my last post.

 

[StephenW]

It's not a direct fit as in, exact dimensions of the stock one. I believe your muffler configuration is the same center inlet/offset outlet as the previous generation(s). This muffler is that same configuration but a little shorter than the stock one, so it'll just need a short piece of pipe (scrap the muffler shop would have laying around) added to make up the difference. I posted Amazon links for both mufflers in my last post.

Yeah I followed the links, was looking for the “fits your vehicle” at the top.

I understand now.

Thanks!


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[StephenW]

It's not a direct fit as in, exact dimensions of the stock one. I believe your muffler configuration is the same center inlet/offset outlet as the previous generation(s). This muffler is that same configuration but a little shorter than the stock one, so it'll just need a short piece of pipe (scrap the muffler shop would have laying around) added to make up the difference. I posted Amazon links for both mufflers in my last post.

So looks like I can get the 12589 for $100 on eBay brand new.


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[iamdub]

Yeah I followed the links, was looking for the “fits your vehicle” at the top.

I understand now.

Thanks!


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I gotcha. Thought maybe the links weren't showing up for you. It's a universal muffler, as pretty much all aftermarket mufflers are so the "Fits your vehicle" thing is irrelevant. Stock or OEM, all a muffler is is a tank with an inlet and outlet that you route pipes to. You just gotta get one that matches the original configuration as closely as possible, which I believe is center inlet and offset outlet.