Best Intake for 6.2L L86

AT4YA · August 30, 2021

Just took delivery of my 21 6.2l at4. Getting flowmaster super 10 put on Wednesday, looking for an intake to match that will have the best performance gain. Would love any suggestions, new to you truck word…kinda CDL A, but never had a personal.

CamGTP · August 30, 2021

There is nothing that will blow your skirt up, no intake system really does that much to be honest. It's all about audible intake sound for the most part. You won't feel the 2% increase in power.

GM sells an intake system with a reflash of the computer. AFE makes an intake and I'm sure there are others.

Read up on the DFM system on those trucks if you're truck isn't one that was plagued by the semiconductor chip shortage. You may not like the helicopter exhaust note you will likely get with that super aggressive chambered muffler you want to install.

Transient · August 30, 2021

1 hour ago, CamGTP said:

There is nothing that will blow your skirt up, no intake system really does that much to be honest. It's all about audible intake sound for the most part. You won't feel the 2% increase in power.

GM sells an intake system with a reflash of the computer. AFE makes an intake and I'm sure there are others.

Read up on the DFM system on those trucks if you're truck isn't one that was plagued by the semiconductor chip shortage. You may not like the helicopter exhaust note you will likely get with that super aggressive chambered muffler you want to install.

Iirc, for MY2021 if a truck wasn't ordered with the GMPP CAI then it isn't available.

AT4YA · August 30, 2021

8 hours ago, CamGTP said:

There is nothing that will blow your skirt up, no intake system really does that much to be honest. It's all about audible intake sound for the most part. You won't feel the 2% increase in power.

GM sells an intake system with a reflash of the computer. AFE makes an intake and I'm sure there are others.

Read up on the DFM system on those trucks if you're truck isn't one that was plagued by the semiconductor chip shortage. You may not like the helicopter exhaust note you will likely get with that super aggressive chambered muffler you want to install.

Thanks for the heads up.

Yeah, I’ve read a bit on the DFM system. Seems like right now the only option is the Pulsar LT for the 2021s. Might wait it out for a bit and see if they come out with just a plain disabler. Just hate to pay an extra $200- 300 for the other features I don’t really want/need.

joe hernandez · August 31, 2021

16 hours ago, AT4YA said:

Thanks for the heads up.

Yeah, I’ve read a bit on the DFM system. Seems like right now the only option is the Pulsar LT for the 2021s. Might wait it out for a bit and see if they come out with just a plain disabler. Just hate to pay an extra $200- 300 for the other features I don’t really want/need.

Believe me, you’ll really like a couple of those other features . Pulsar has been my absolute favorite mod for this truck

MikeDP · August 31, 2021

I put a rotofab on my 6.2 TB and have been really happy with it.

AT4Play · August 31, 2021

I have had both the gmpp and just installed the s&b. Th s&b kit flows 50% more than the gmpp CAI it is also MUCH better made imho. The air filter itself is twice as big as the gm CAI. Install was very easy too, legitimately the nicest instructions I've ever seen. Oh and the s&b makes better woosh noises so my butt dyno says it's faster.

AT4YA · August 31, 2021

Appreciate the review!

Amcguy1970 · August 31, 2021

1 hour ago, AT4Play said:

I have had both the gmpp and just installed the s&b. Th s&b kit flows 50% more than the gmpp CAI it is also MUCH better made imho. The air filter itself is twice as big as the gm CAI. Install was very easy too, legitimately the nicest instructions I've ever seen. Oh and the s&b makes better woosh noises so my butt dyno says it's faster.

50% more filter size doesn't mean it flows 50% more air...

Tyler

AT4Play · September 2, 2021

On 8/31/2021 at 11:44 AM, Amcguy1970 said:

50% more filter size doesn't mean it flows 50% more air...

Possibly, but S&B claim 51.69% flow improvement over stock.

All I can say is the sound difference alone was worth the purchase for me.

RCF71 · September 2, 2021

The way I read their test data is that it flows about 50% more cfm at a specific pressure drop across the filter/housing than the stock setup while achieving slightly better filtration using a certain test media/dust.

That should equate to better/more airflow but not 50% because there are other restrictions in the systems.

AT4Play · September 2, 2021

7 hours ago, RCF71 said:

The way I read their test data is that it flows about 50% more cfm at a specific pressure drop across the filter/housing than the stock setup while achieving slightly better filtration using a certain test media/dust.

That should equate to better/more airflow but not 50% because there are other restrictions in the systems.

I really like the fact that it filters better, I spend a lot of time off road.

My truck is definitely not pulling that much air without a procharger, long tube headers, and a whole lot of gas. lol

Mikey1930 · October 14

On 8/31/2021 at 5:46 AM, MikeDP said:

I put a rotofab on my 6.2 TB and have been really happy with it.

I'm leaning towards this one as I know you don't need a computer flash. Did you hear any in stock sound muffler sound and did you gain any mpg. Thanks.

MikeDP · October 14

54 minutes ago, Mikey1930 said:

I'm leaning towards this one as I know you don't need a computer flash. Did you hear any in stock sound muffler sound and did you gain any mpg. Thanks.

No difference in factory exhaust sound, but you can hear it suck air when you hammer on it.

I put on a Borla catback and bed cover in the days after the intake install and can say I picked up 2-3 highway mpg

Mikey1930 · October 15

22 hours ago, MikeDP said:

No difference in factory exhaust sound, but you can hear it suck air when you hammer on it.

I put on a Borla catback and bed cover in the days after the intake install and can say I picked up 2-3 highway mpg

Thanks for the information. As for exhaust I’m going with the more obnoxious AWE. The Borla Attak sounds great but I’m going for the pissing off the neighbors sound. I had a a 22 Camaro SS with the performance exhaust on it and the AWE gives me that same sound back at about 5 plus times louder especially at idle.