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2019 AT4 - Mods

Taz56

By Taz56
in Modifications, Wheels & Tires

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Taz56 Enthusiast

Taz56

Posted
Posted (edited)

I have a 2019 GMC Sierra AT4, 6.2L

 

I bought it brand new in July.

In July I added a Tonneau cover and wheel to wheel side steps. I also had 3M put on the entire front end.

In Aug I had a leveling kit installed and de-badged it.

In Oct I had my dash-cam and my radar detector hard wired and mounted.

In Nov I had a cold air intake and new Cat-Back performance exhaust installed.

In Nov still she will get 20" rims and tires (has 18" stock now) and 1.5" spacers to give her a better stance on the road.

 

More to come.

 

Edited by Taz56
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Ghblue New Member

Ghblue

Posted
Posted

Love it. I have a 20 AT4 black. I have the 6.2, but I’d like to make her sound better. I’ve seen people delete the muffler. Anyone have thoughts on this?  

Taz56 Enthusiast

Taz56

Posted
  • Author
Posted (edited)

Never thought of deleting the muffler, not legal in Canada. But on my 2014 I switched to a "Flo-Pro Twisted" muffler. Sounded GREAT. 

 

Edited by Taz56
paulny Enthusiast

paulny

Posted
Posted

My '19 AT4 had the GM CAI and catback sport exhaust installed as a factory option.  Honestly, it sounds amazing. I get compliments all the time and there is no drone at highway speeds.  I don't like an overly aggressive exhaust so this one is perfect.  Just something to consider as an option to muffler delete.

truck_newbie Enthusiast

truck_newbie

Posted
Posted
17 hours ago, Ghblue said:

Love it. I have a 20 AT4 black. I have the 6.2, but I’d like to make her sound better. I’ve seen people delete the muffler. Anyone have thoughts on this?  

Your mileage will vary with muffler delete or just muffler swap. I recommend a full-catback system. At this point, there are quite a number of options for the T1. If the Borla, Corsa, Magnaflow, etc are too pricey for you, you can try the more affordable options. Personally, i recommend the Gibson. It's more of a tamer exhaust but it was only about $500 and i love it. 

z1boss Enthusiast

z1boss

Posted
Posted
On 10/30/2019 at 9:19 PM, Ghblue said:

Love it. I have a 20 AT4 black. I have the 6.2, but I’d like to make her sound better. I’ve seen people delete the muffler. Anyone have thoughts on this?  

I have a Trail Boss and I installed an electronic cutout before the muffler and i absolutely love it.  No drone and you can make it loud or stock quiet with the push of a button.  When it is open, it's very deep and throaty.  Sounds like a modified corvette. See my post on this.  Instructions are halfway down the page and there are a few YouTube videos.

 

 

Taz56 Enthusiast

Taz56

Posted
  • Author
Posted

Just dropped my girl off. Cat-Back exhaust and cold air intake are going in as I type this....

Taz56 Enthusiast

Taz56

Posted
  • Author
Posted

275 / 60R20

1.5" spacer

 

IMG_7706.jpg

IMG_7716.jpg

IMG_7715.jpg

  • 3 years later...
Jmcclure0212 New Member

Jmcclure0212

Posted
Posted
On 10/30/2019 at 9:19 PM, Ghblue said:

Love it. I have a 20 AT4 black. I have the 6.2, but I’d like to make her sound better. I’ve seen people delete the muffler. Anyone have thoughts on this?  

I have 19 at4 6.2. Just had my exhaust done. Went cat back true dual straights. . Dual 2.5” pipe 4.5”x12” black tips. Dumped little past rear axle. Had the flat pipe under the trans cut out also has x pipe put in. 

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