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Posted

I put the gm intake kit and reflashed the ecm on my 6.2 today. Definetely a noticable power increase. The funny thing is the shipping label on the box said it shipped from k&n industries lol. And the tune is just for mass airflow recalibration so the transmission doesn't end up with shifting issues because the tcm uses the maf sensor as a major input for shift timing etc..

  • Like 1
  • 4 months later...
Posted

I just installed the GM Cold Air Kit on my 2019 Silverado 6.2L. I had the chance to buy and compare both the K&N 63-3109 and the GM Part #  84789804. The price difference was about $85 more for the GM kit. On examining the over all kit construction and design of both, the GM kit is by far superior in fit, form and function. Better built and in my opinion and more durable. all the factory brackets and holes to attach wire looms are in the same place as the OE box I removed. The clear plastic top gives you the opportunity to see the filter for examination, plus it looks better than the K&N filter boxes solid black top. Also the hose on the GM kit that goes from the air box to the throttle body is heavier duty and the design will allow less leaks or loosening over time. It is the old story of, you get what you pay for! Is it more expensive than the K&N or other brand Cold Air kits, Yes. But when spending the amount of money on my truck that I did buying it new, why not buy the BEST. I have been in the Automotive Enthusiast for over 40 years, ASE Certified, worked for an Automotive Supplier for my whole career and I have seen a lot of accessories, installed many and did a lot of mods over the years and know when items are just right. This is the kit you want. Now for how it works, I also have the factory performance exhaust as well, the cold air kit did not add a lot of sound volume. You can hear it a tad more but not a bad sound note at all. Sounds better in my opinion. The throttle response is better and feels like it adds to the performance. From examining both kits, one will not give you any better power than the other. Don't get me wrong, the K&N kit is a nice piece of hardware and will work well, they make great products. I just prefer the fit,  form and function of the GM kit. Plus, it is also covered under the warranty program along with my truck, and you will never have to fight with the dealer if there is an engine management issue down the road as this is an OE kit. That makes a difference in itself. The GM kit has a dry filter media, which I prefer. Now, the above is just my impressions of the kits and my opinion. You will have your own and know what works best for you. Good luck to all of you out there with modding your trucks and whatever choices you make on products will make it your own unique

rig ! Below pics are of my install. 

IMG_5628.jpg

IMG_5627.jpg

IMG_5626.jpg

IMG_5625.jpg

  • Like 6
  • 4 weeks later...
Posted
On ‎9‎/‎14‎/‎2019 at 2:39 PM, AutoTerry said:

I just installed the GM Cold Air Kit on my 2019 Silverado 6.2L. I had the chance to buy and compare both the K&N 63-3109 and the GM Part #  84789804. The price difference was about $85 more for the GM kit. On examining the over all kit construction and design of both, the GM kit is by far superior in fit, form and function. Better built and in my opinion and more durable. all the factory brackets and holes to attach wire looms are in the same place as the OE box I removed. The clear plastic top gives you the opportunity to see the filter for examination, plus it looks better than the K&N filter boxes solid black top. Also the hose on the GM kit that goes from the air box to the throttle body is heavier duty and the design will allow less leaks or loosening over time. It is the old story of, you get what you pay for! Is it more expensive than the K&N or other brand Cold Air kits, Yes. But when spending the amount of money on my truck that I did buying it new, why not buy the BEST. I have been in the Automotive Enthusiast for over 40 years, ASE Certified, worked for an Automotive Supplier for my whole career and I have seen a lot of accessories, installed many and did a lot of mods over the years and know when items are just right. This is the kit you want. Now for how it works, I also have the factory performance exhaust as well, the cold air kit did not add a lot of sound volume. You can hear it a tad more but not a bad sound note at all. Sounds better in my opinion. The throttle response is better and feels like it adds to the performance. From examining both kits, one will not give you any better power than the other. Don't get me wrong, the K&N kit is a nice piece of hardware and will work well, they make great products. I just prefer the fit,  form and function of the GM kit. Plus, it is also covered under the warranty program along with my truck, and you will never have to fight with the dealer if there is an engine management issue down the road as this is an OE kit. That makes a difference in itself. The GM kit has a dry filter media, which I prefer. Now, the above is just my impressions of the kits and my opinion. You will have your own and know what works best for you. Good luck to all of you out there with modding your trucks and whatever choices you make on products will make it your own unique

rig ! Below pics are of my install. 

IMG_5628.jpg

IMG_5627.jpg

IMG_5626.jpg

IMG_5625.jpg

Hello Terry, I have this system and after reading the instructions, it says to replace the filter element part # 84428120 every 20K miles.  I thought it was washable like all of the other CAI's on the market.  These filters are $100.00 at the dealer and around $65 on line.  Are they telling me wrong or do you have to replace them.   Paul

Posted

Does anyone know with the GM Part #  84789804 Cold Air Intake if the filter media can be washed and reused or not.  The instructions say to replace the filter with a new one part number 84428120 every 20K miles.  Every other dry media CAI is washable.  These filters are hard to find and expensive..

  • 3 months later...
Posted

I added the performance intake and exhaust to my 2020 Trail boss with the 5.3l 10 speed trans.   Better HP and better mileage , and it sounds amazing.  Adding the intake only wont do much without the exhaust.

 

  • Like 1
Posted
On 3/24/2019 at 2:24 AM, Bfdfreddie said:

I will have one for sale off my AT4 in a couple months. I did not know this till after I ordered my truck. I am getting whipples supercharger for my 6.2 and it gets rid of the GMC upgraded air filter. It will be brand new and I will probably advertise around 250 plus shipping. Send me a message if you think you will be interested. 

I’m interested in purchasing 

Posted
On 9/20/2019 at 11:53 AM, Mountain boy said:

I wonder why no one noticed he has a TB, which still has the old 5.3 so a 2018 should be the correct one. It has AFM not DFM.

I believe he has an LT Trail Boss which has the newer engine, not like the Custom Trail Boss. 

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