Muffler question

I have the GM performance exhaust, which admittedly is a pretty mild upgrade and a pretty mild increase in noise, mainly on cold starts. That said, my wife and small children are not fond of the higher volume. To add to that, I work off hours, and I’m often starting the car at night when the kids are already asleep and it seems especially loud then. I like the sound of the exhaust and I like the look of the GMC engraved exhaust tips, but I’m wondering if anybody has a recommendation for a muffler to swap in to dial the volume down a bit.

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BrotriX said:

I have the GM performance exhaust, which admittedly is a pretty mild upgrade and a pretty mild increase in noise, mainly on cold starts. That said, my wife and small children are not fond of the higher volume. To add to that, I work off hours, and I’m often starting the car at night when the kids are already asleep and it seems especially loud then. I like the sound of the exhaust and I like the look of the GMC engraved exhaust tips, but I’m wondering if anybody has a recommendation for a muffler to swap in to dial the volume down a bit.

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Corsa Touring? I think your GM Performance Exhaust was made by Borla. You might see if they have a more quiet muffler too.

Does the family just dislike it during start up or when driving?

People have made little inserts out of pool noodles to stick in the tips if it’s just start up.

If it’s all the time, I hate to say it but you may want to see if someone will swap you for OEM. The GM performance system removes one of the two DFM valves, is different muffler and resonators.

BrotriX said:

I have the GM performance exhaust, which admittedly is a pretty mild upgrade and a pretty mild increase in noise, mainly on cold starts.....

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Put a Borla Touring 3" in > dual 2.5" out on my aluminum LC9 5.3. It's just about perfect for me at 48yrs old. Plenty of bass above 3500 and just enough on cold starts. If anything I would turn it up the slightest little bit on starts.

+1 to @swathdiver advice also.. Ask Borla if they designed it to sound like the Touring? S-Type? or somewhere in between, or just outside the range of those two? I'd be curious to know?
......during my process, I learned that they use the same "can" for the Ford 2.7L turbo V6 as they do for the Ford 5.0L V8 and the GM 5.3L V8.
Found this one on the market book yardsale 3.5hrs away in Knoxville. Initially blew it off when I discovered it was bought for and installed on a 2.7 F150 for approx 1500mi. He said it wasn't loud enough(I though what would be on a 2.7L?) But it was so pristine that I kept going back to it. After enough times looking at it, I wanted to know why it couldn't be made to work for 2011 GMT900? What was different about the muffler? **Because the rest is just stainless pipe, it can be made to go on a lawnmower if you wanted** After closely comparing the two diagrams below, I was curious enough to call Borla and find out. Three calls later and I offered the guy a ridiculously low number and he said yes immediately. Said he was tired of stepping over it

Hi Brotrix, when you say "GM performance exhaust" is it part number: 84888291 or is it the Borla 19433760?

How big of a difference would you say it had over stock in terms of sound when accelerating? Stock, did you already had the dual-exit exhaust?