6.2L Borla S-Type Cat-Back -vs- True Dual Cat-Back ?

[Greg Lalumiere]

When researching for a new exhaust for my 19 Denali (6.2 / Crew / Short) I found many sound clip videos, instillation videos, posts, and info on the Borla S-Type Cat-Back system, however I noticed on their site they actually offer an S-Type True Dual Cat-Back in addition to their regular Cat-Back system for the 6.2.  None of the videos I found, including the ones on Borla's site, were of the True-Dual system, matter of fact I couldn't even find any posts about it at all. They both offer the same tip options, 50- Round Rolled Angle-Cut Black,  71- Round Angle Cut Carbon Fiber,  42- Dual Square Rolled Angle-cut chrome,  44- Factory tip.  The True Dual system is about 8lbs heavier and costs and extra $120.  

 

Anybody have any idea on the sound/performance difference... there must be some sound difference considering they use completely different mufflers as well as different pipe volume? 

 

Edited August 13, 2020 by Greg Lalumiere

[childstoys]

In for this one.... I have been wondering the same exact thing and can't find any info on it. I also feel that I checked a few sites on if this will setup will fit on a CCSB  6.2 and they said it couldn't. Not sure what it would fit on then. 

[Greg Lalumiere]

17 minutes ago, childstoys said:

In for this one.... I have been wondering the same exact thing and can't find any info on it. I also feel that I checked a few sites on if this will setup will fit on a CCSB  6.2 and they said it couldn't. Not sure what it would fit on then. 

This from the Borla site, all 4 are the True-Dual... it better fit a 6.2 CC SB.  140785 is sitting in the box in my garage, I'll find out this weekend if I can find the time.

 

Edited August 13, 2020 by Greg Lalumiere

[TNTSierra]

I was really leaning towards the Borla S type, but unfortunately they don't make it for the CC standard bed. Wish they did because I would have purchase this for sure. So I went with the Corsa Dual Sport instead.

[Coles5515]

19 hours ago, TNTSilverado said:

I was really leaning towards the Borla S type, but unfortunately they don't make it for the CC standard bed. Wish they did because I would have purchase this for sure. So I went with the Corsa Dual Sport instead.

Yeah I’m in the same boat, I’m just going to do the AFE Delete pipe as I’m not a fan of Corsa. Just not loud enough for me. 

[SYRLTZ2020]

All you need to do make it fit a CC, standard box is to add a short length of straight pipe.  That's what i did with mine.  Pretty straight forward.

 

https://www.gm-trucks.com/forums/topic/237471-crew-cab-standard-bed-exhaust-options/?tab=comments#comment-2413385

 

 

Nate

 

Edited August 14, 2020 by SYRLTZ2020
added link

[Coles5515]

5 hours ago, SYRLTZ2020 said:

All you need to do make it fit a CC, standard box is to add a short length of straight pipe.  That's what i did with mine.  Pretty straight forward.

 

https://www.gm-trucks.com/forums/topic/237471-crew-cab-standard-bed-exhaust-options/?tab=comments#comment-2413385

 

 

Nate

 

I’ll probably end up doing that if I don’t like the sound of the muffler delete from Afe

[childstoys]

On 8/13/2020 at 1:06 PM, Greg Lalumiere said:

This from the Borla site, all 4 are the True-Dual... it better fit a 6.2 CC SB.  140785 is sitting in the box in my garage, I'll find out this weekend if I can find the time.

 

 

Any luck with this??? Curious of the outcome. I'm getting ready to pull the trigger on an exhaust as soon as I take delivery. Been looking around for other posts about true dual vs Y pipe. Sound / Performance difference? I'm sure they would be marginal, but I bet we can all agree, it's the minor details that matter most in the mod world. lol

 

I'm really stuck between the Touring and S-Type. I need to make a decision soon. My wife might kill me if she hears another exhaust YouTube video in the middle of the night. She tells me "You've listened to that same f@&king video 5 times now!" *Inserts Earbuds* lol

[econometrics]

On 8/18/2020 at 10:30 AM, childstoys said:

 

Any luck with this??? Curious of the outcome. I'm getting ready to pull the trigger on an exhaust as soon as I take delivery. Been looking around for other posts about true dual vs Y pipe. Sound / Performance difference? I'm sure they would be marginal, but I bet we can all agree, it's the minor details that matter most in the mod world. lol

 

I'm really stuck between the Touring and S-Type. I need to make a decision soon. My wife might kill me if she hears another exhaust YouTube video in the middle of the night. She tells me "You've listened to that same f@&king video 5 times now!" *Inserts Earbuds* lol

Lol totally related. I've been watching videos nonstop comparing the Touring to other exhaust systems. 

 

I've decided I'm going to do the Touring vs. S-type. I've never had a performance exhaust, and I enjoy the quiet ride of my truck. I like that the reviews I've read from real owners of the Touring (or GMPE) have said it's great at cruise, but wakes up when you stand on it. That's really all I want. I'm not trying to sound like the 25yo kid in the neighborhood.  

[childstoys]

19 minutes ago, econometrics said:

Lol totally related. I've been watching videos nonstop comparing the Touring to other exhaust systems. 

 

I've decided I'm going to do the Touring vs. S-type. I've never had a performance exhaust, and I enjoy the quiet ride of my truck. I like that the reviews I've read from real owners of the Touring (or GMPE) have said it's great at cruise, but wakes up when you stand on it. That's really all I want. I'm not trying to sound like the 25yo kid in the neighborhood.  

I'm in the same position. In my teens and 20's I owned lifted V8's with straight pipes, cherry bombs, exhaust stacks, you name it. I've been without a loud exhaust for quite some time now, and I hunt a lot in areas where I need to access without making a commotion. I'm really leaning towards the Touring but my inner motorhead wants the S-Type. lol   #FirstWorldProblems

[Greg Lalumiere]

So I finally opened up the box and after reading the instructions I decided not to do the install myself, it's at the shop now being installed.  The part that scared me from doing it myself was the precision cuts that need to be done on the factory Y pipe.  The new pipes connect behind the cats at very curvy bends, it has to be cut perfectly as there is only a very limited amount of round pipe where you end up clamping the new pipes behind the cats.  Not something I wanted to try laying on my back under the truck. Even high on the lift the shop isn't convinced that clamping on that limited amount of round pipe will be enough to seal well, they might end up mig welding those connections. I'll follow up after they finish.

 

I also got a look inside the dual-in dual-out single muffler, I was real curious if it was dual straight throughs just sharing a case. Turns out it's not really straight through, the inlet starts as dual straight through but then opens up some in the middle with a port connecting the duals together making a shared single expansion chamber, then the chamber narrows out and goes back to dual straight through outlets.  So the muffler makes a 2-1-2 style exhaust, like a mini X-pipe inside the muffler. That's good from a power perspective, can't comment on the sound... yet.  

 

More to come.   

[econometrics]

50 minutes ago, childstoys said:

I'm really leaning towards the Touring but my inner motorhead wants the S-Type. lol   #FirstWorldProblems

YES! 

 

I feel like the Touring will disappoint me for not growling enough. BUT... I think that will only be the first couple weeks I own it. After that, I think I'll be happy I went with the tamer of the two. 

 

Some of the cold start videos of guys on here with the S-Type really bark. And even in the Borla Youtube video, you can hear that extra bark when they accelerate. 

 

I've also thought about a Flowmaster Cut-out system... but I'm sold on the Borla quality and performance. 

[econometrics]

2 hours ago, Greg Lalumiere said:

So I finally opened up the box and after reading the instructions I decided not to do the install myself, it's at the shop now being installed.  The part that scared me from doing it myself was the precision cuts that need to be done on the factory Y pipe.  The new pipes connect behind the cats at very curvy bends, it has to be cut perfectly as there is only a very limited amount of round pipe where you end up clamping the new pipes behind the cats.  Not something I wanted to try laying on my back under the truck. Even high on the lift the shop isn't convinced that clamping on that limited amount of round pipe will be enough to seal well, they might end up mig welding those connections. I'll follow up after they finish.

 

I also got a look inside the dual-in dual-out single muffler, I was real curious if it was dual straight throughs just sharing a case. Turns out it's not really straight through, the inlet starts as dual straight through but then opens up some in the middle with a port connecting the duals together making a shared single expansion chamber, then the chamber narrows out and goes back to dual straight through outlets.  So the muffler makes a 2-1-2 style exhaust, like a mini X-pipe inside the muffler. That's good from a power perspective, can't comment on the sound... yet.  

 

More to come.   

I think you made the right choice. If you're going to pay $1200 for a system like a Borla, spending an extra $100-$200 to have someone else put it in in like 60-90 min is well worth it, IMO. But that's just my $0.02. I'm not a shade tree mechanic. 

[lt1z]

So I finally opened up the box and after reading the instructions I decided not to do the install myself, it's at the shop now being installed.  The part that scared me from doing it myself was the precision cuts that need to be done on the factory Y pipe.  The new pipes connect behind the cats at very curvy bends, it has to be cut perfectly as there is only a very limited amount of round pipe where you end up clamping the new pipes behind the cats.  Not something I wanted to try laying on my back under the truck. Even high on the lift the shop isn't convinced that clamping on that limited amount of round pipe will be enough to seal well, they might end up mig welding those connections. I'll follow up after they finish.
 
I also got a look inside the dual-in dual-out single muffler, I was real curious if it was dual straight throughs just sharing a case. Turns out it's not really straight through, the inlet starts as dual straight through but then opens up some in the middle with a port connecting the duals together making a shared single expansion chamber, then the chamber narrows out and goes back to dual straight through outlets.  So the muffler makes a 2-1-2 style exhaust, like a mini X-pipe inside the muffler. That's good from a power perspective, can't comment on the sound... yet.  
 
More to come.   

Very interested in a video once its installed. I have been thinking of getting this to replace my GM/Borla 6.2 exhaust but Haven’t been able to find any sound clips

[childstoys]

4 hours ago, lt1z said:

Very interested in a video once its installed. I have been thinking of getting this to replace my GM/Borla 6.2 exhaust but Haven’t been able to find any sound clips