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S&B Intake 3.0L Duramax Video

Lucely Engineered
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Lucely Engineered Enthusiast

Lucely Engineered

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Posted (edited)

A few people were interested in a video to hear how the new 3.0L LM2 sounds with an aftermarket intake on in. So here you go. 

 

2021 Silverado 3.0L LM2

S&B Intake

~40 degrees outside temp

 

https://youtu.be/gJ7BKyQOYfU

(I'm no youtuber, so please be nice about the quality)

 

This is with the full kit installed, and the box plug left out like the instructions. 

 

Very noticeable idle air noise, part throttle turbo whistle, and zero throttle deceleration air noise. I was very surprised by how it sounds, never quite had an intake sound like this. I do like it a lot. Wide open throttle wont get much out of it but the part throttle around 2000rpm is where it hits a sweet spot. There is a loud zero throttle air rushing noise that's always there on deceleration, i find it cool but some could be annoyed by it to be honest. 

Edited by Lucely Engineered
Pswa320 Enthusiast

Pswa320

Posted
Posted
2 hours ago, Lucely Engineered said:

A few people were interested in a video to hear how the new 3.0L LM2 sounds with an aftermarket intake on in. So here you go. 

 

2021 Silverado 3.0L LM2

S&B Intake

~40 degrees outside temp

 

https://youtu.be/gJ7BKyQOYfU

(I'm no youtuber, so please be nice about the quality)

 

This is with the full kit installed, and the box plug left out like the instructions. 

 

Very noticeable idle air noise, part throttle turbo whistle, and zero throttle deceleration air noise. I was very surprised by how it sounds, never quite had an intake sound like this. I do like it a lot. Wide open throttle wont get much out of it but the part throttle around 2000rpm is where it hits a sweet spot. There is a loud zero throttle air rushing noise that's always there on deceleration, i find it cool but some could be annoyed by it to be honest. 

I think it sounds pretty good, almost like an old school military deuce and a half type sound as I think they were inline 6 engines.

 

you notice any difference in performance or increase/decrease in mpg’s?

Lucely Engineered Enthusiast

Lucely Engineered

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11 hours ago, Pswa320 said:

I think it sounds pretty good, almost like an old school military deuce and a half type sound as I think they were inline 6 engines.

 

you notice any difference in performance or increase/decrease in mpg’s?

Performance wise id like to think it feels like it pulls harder, but honestly i only had 400 miles on it before doing this so my butt-dyno isnt very calibrated. And i dont do much WOT until the truck had some miles on it.

 

As for mileage Thats hard to judge right now too, because we just went through a terrible February for weather, so 50% of the run time was remote start. 

Pswa320 Enthusiast

Pswa320

Posted
Posted

Will be interesting to see how the mpg’s are affected. Engine breathing better so it should improve but will be hard to determine in the short term with everyone looking for the power increase. Lots of start and stop and heavy pedal by most right after install so numbers won’t be accurate right away.

Lucely Engineered Enthusiast

Lucely Engineered

Posted
  • Author
Posted
8 minutes ago, Pswa320 said:

Will be interesting to see how the mpg’s are affected. Engine breathing better so it should improve but will be hard to determine in the short term with everyone looking for the power increase. Lots of start and stop and heavy pedal by most right after install so numbers won’t be accurate right away.

Just saw your thread on this, i might just delete this one and move to yours. 

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