2020 Exhaust System.....

[jack jenkins]

Can somebody please help me and tell me which aftermarket exhaust (cat back) system is most commonly used on these trucks with the 5.3L.

I was considering the Stainless Works Redline but really can’t find to much as far as reviews go on our trucks. (I was waiting for the Black Friday sale they said they were going to offer, but they decided not to offer one)

considering the American Thunder set up and I see a lot of Corsa positive reviews. 
Borla S-type is in the running too

[sethro274]

I had the Borla S-Type on my 2020 AT4 with 6.2L and loved it. No drone on the highway (the sound was noticeable but not annoying). Sounded great on start up and acceleration. 10/10 would do again.

I traded for a 21 3.0L or I would still have it. If I did another gas I would do it again. It was worth the extra expense over some other brands.


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[TNTSierra]

I have the Corsa cat back exhaust and absolutely love it. Has an outstanding growl when you start it up. Is really quiet when driving but when you accelerate it gets aggressive and loud.  But not annoying loud though. Also there is zero drone on the highway and I drive it all the time on highway running 70 mph or higher. 

I also had Gibson on my 2018 and love that exhaust. Had a deep growl and zero drone. They just didn’t make the exhaust for standard bed truck. Just short box 5’10” box at the time. 

 

Borla also makes a fantastic exhaust. I have never had them personally but they sound very nice. I would have gotten the S type if they had made the standard bed size exhaust for my truck. They only had the Touring exhaust for the standard bed at the time. GM performance exhaust is Borla’s Touring. Then S type is mid pack and Atak is very aggressive. My Corsa and my Gibson where the same tone as the S type

 

I had MagnaFlow on my SS Trailblazer and it had terrible drone, but also had it on my 97 C/K 1500 and it was nice. No drone on that truck.  But it never had any AFM/DFM these new truck have

 

My father has FlowMaster and it sounds nice but has terrible drone. 

 

Good luck with your choice. 

Edited December 6, 2020 by TNTSilverado

[jack jenkins]

Thanks for help. I get more and more confused the more I read.

Anybody have the Stainless Works system or has heard it in person ?

I found one review on it here and the guy sent it back because of drone. Anybody else have first hand experience with their cat back set up ?

Thanks in advance for the help. 

[OnTheReel]

Honestly I think the safe bets are Corsa, Borla and GM Performance (made by Borla). Have heard people bitching about drone with every other system.

Really depends on what type of sound you’re after though. I like my GM Performance. It’s a little rowdy on cold starts but calms down nice. No drone either. I would say it’s on the mild end of the spectrum overall.

[jack jenkins]

Any flowmaster fans ?

[sethro274]

Honestly I think the safe bets are Corsa, Borla and GM Performance (made by Borla). Have heard people bitching about drone with every other system.

Really depends on what type of sound you’re after though. I like my GM Performance. It’s a little rowdy on cold starts but calms down nice. No drone either. I would say it’s on the mild end of the spectrum overall.

I had the GM Performance system on my 2019 AT4 5.3L. It’s not as aggressive as the Borla. I was told by the make ready manager at my store that the GM one has a huge resonator compared to the Borla S-Type. I would do either of those again. I did the Borla S-type over the GM one is I could get it cheaper. Both are great though but the Borla is more aggressive for sure.


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[OnTheReel]

3 minutes ago, sethro274 said:

I had the GM Performance system on my 2019 AT4 5.3L. It’s not as aggressive as the Borla. I was told by the make ready manager at my store that the GM one has a huge resonator compared to the Borla S-Type. I would do either of those again. I did the Borla S-type over the GM one is I could get it cheaper. Both are great though but the Borla is more aggressive for sure.


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The GMPP doesn’t have any resonators, maybe he meant muffler. Although I don’t think the muffler is that big either, not compared to the stock system.

 

I believe the GMPP is identical to the Borla Touring, so it is not as aggressive as the S-Type.

[sethro274]

The GMPP doesn’t have any resonators, maybe he meant muffler. Although I don’t think the muffler is that big either, not compared to the stock system.
 
I believe the GMPP is identical to the Borla Touring, so it is not as aggressive as the S-Type.

Maybe he meant muffler but he said the one from GM Performance is much bigger than the Borla S-Type. Both are much smaller than factory.


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[econometrics]

Another vote for the GM Performance Exhaust aka Borla Touring. LOVE mine. 
 

If I were betting, the GMPE / Borla Touring would be the most installed cataback system on the T1s. Mainly due to GM selling it as optional add-on. 

[jack jenkins]

Thanks For the last minute input from everyone who offered it. Decided to go with the Corsa. Couldn’t find anything relating to the Stainless Works set up and was able to find a lot of positive feedback on the Corsa.  5-6 week build time before I see it. That’s ok by me, I’m sure it will be worth the wait. Thanks again for the help here.

[TNTSierra]

5 hours ago, jack jenkins said:

Thanks For the last minute input from everyone who offered it. Decided to go with the Corsa. Couldn’t find anything relating to the Stainless Works set up and was able to find a lot of positive feedback on the Corsa.  5-6 week build time before I see it. That’s ok by me, I’m sure it will be worth the wait. Thanks again for the help here.

Congrats. Hope you love it as much as I love mine. 

[Bud Boss Lt]

Anybody have any experience with the rough country exhaust?

 

[OnTheReel]

14 minutes ago, Bud Boss Lt said:

Anybody have any experience with the rough country exhaust?

 

If you plan the keep the truck awhile, I would probably spend more. The RC is 409 stainless, so it’ll look like crap in a hurry and eventually rot out. Especially if you’re in the salt. The other brands in discussion use 304 which is a much more durable and better looking product. You get what you pay for.

[Bud Boss Lt]

Some salt not much, I'll keep it 4-5 years.  Honestly out of all the videos I've seen (which is hard to tell sometimes) I like the sound of it the best.  Not too aggressive