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Dual vs single exhaust

Megalomegalodon
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Megalomegalodon Enthusiast

Megalomegalodon

Posted
Posted (edited)

I have a 2020 SLT 8spd with a single exhaust. I see what appear to be identical trucks with dual exhaust (HDMI exhaust). Why the difference in the two. Is it a option or maybe 10spd vs 8spd. Mine is also a standard bed and most I see are short bed. Maybe that is the difference.

Edited by Megalomegalodon
redwngr Senior Enthusiast

redwngr

Posted
Posted

It's single from front to rear and the split for exit -- for appearance. 

 

3.0L is a straight pipe from front to back -- all cat/scr/dpf stuff is under the hood. 

I don't know if all 3.0's are split at rear for exit, but mine is.

 

redwngr Senior Enthusiast

redwngr

Posted
Posted

Yes, we understood that.

 

 

Point is the dual outlet's are not dual from front to back.

 

Megalomegalodon Enthusiast

Megalomegalodon

Posted
  • Author
Posted

I know they are not dual from front to back. I'm just wondering why some models have dual and some have single at the back. My SLT is a 5.3 with a single exhaust at the back. I see other 5.3 SLT models with the dual exhaust at the back. A previous post said it was an aesthetic package. I'll just go with that.

newdude Senior Enthusiast

newdude

Posted
Posted (edited)

Regular 4x4 or Z71/X31 is the deciding factor. 

 

On LT/RST/LTZ and SLE/Elevation/SLT trims, if you have regular 4X4 you get the single side exit exhaust.  With Z71 or X31 you get the dual exits in the bumpers.  

 

SLT with 6.2s come with the dual with or without X31.  

 

High Country, AT4 and Denali the dual is the only exhaust configuration. 

Edited by newdude
  • Like 2
Megalomegalodon Enthusiast

Megalomegalodon

Posted
  • Author
Posted

I'm none of the above. 

2020 Sierra SLT 5.3V8 2x4 with side exhaust. I've seen other of what appear to be the same model visually, but with dual exhaust. I'm thinking it has to do with 4x4 vs 2x4. Thank you all for your input.

newdude Senior Enthusiast

newdude

Posted
Posted (edited)
35 minutes ago, Megalomegalodon said:

I'm none of the above. 

2020 Sierra SLT 5.3V8 2x4 with side exhaust. I've seen other of what appear to be the same model visually, but with dual exhaust. I'm thinking it has to do with 4x4 vs 2x4. Thank you all for your input.

 

 

So there you go its 2WD.  You've left that detail out until now. 

 

Regular 4X4 have the same exhaust outlet setup that you have.  I have a regular 4x4 truck, has the single exit.  

 

Z71 and X31 trucks have the duals, as do all Denali (2wd and 4wd), High Country (2wd and 4wd) and AT4.

Edited by newdude
redwngr Senior Enthusiast

redwngr

Posted
Posted

On SLT for 2021, the dual outlets are on SLT if it  has 6.2 or if it has X31 

Presumably it was similar for 2020

 

NB5    Exhaust, single outlet                          S       S       S       S       S       --       --   

 

N10    Exhaust, dual with premium tips       --       A1    --       A1    A2    S3    S
SLE and #SB ELlevation --  Included and only available with (X31) X31 Off-Road Package. 
SLT -  Included and only available with (L87) 6.2L EcoTec3 V8 engine or (X31) X31 Off-Road Package. 
AT4 -  With (PCP) AT4 CarbonPro Edition the exhaust tips will be black.     --       A1    --       A1    A2    S3    S   

Denali - dual outlets are standard.

 

  • Like 1
  • 2 years later...
pgamboa Senior Enthusiast

pgamboa

Posted
Posted

I’m looking to do this on my 2021 - Silverado LT - 1500 2WD truck.  I recently grabbed a bumper in black from a local guy. @newdude thank you for all you do sharing valuable info. 
 

Reading this, I’m starting to think it might be a PITA lol. 
 

The goal was to get a black bumper and chrome delete it. Ended up with the dual HDMI port bumper and thinking maybe I go with a single exhaust. 

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