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Active aero vents and Stillen tru power intake

Presley
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Presley Enthusiast

Presley

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Ordered a Stillen tru power intake for my 2020 lt trailboss 6.2. When I installed it I found that I have  the aero louvres behind my grill. From what little I have found the louvres close at 55 mph, which would basically kill the ram air effect for the new intake. My question is does anyone know if you can remove the top louvres without hurting the rest? Has anyone else tried this?  After I got it on I made a roughly 500 mile drive to Detroit, but I couldn’t tell if it did anything cause I also just got the gm cold air intake on the truck and had the dealership adjust the maf.

fatwhiteboy Enthusiast

fatwhiteboy

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6 hours ago, Presley said:

Ordered a Stillen tru power intake for my 2020 lt trailboss 6.2. When I installed it I found that I have  the aero louvres behind my grill. From what little I have found the louvres close at 55 mph, which would basically kill the ram air effect for the new intake. My question is does anyone know if you can remove the top louvres without hurting the rest? Has anyone else tried this?  After I got it on I made a roughly 500 mile drive to Detroit, but I couldn’t tell if it did anything cause I also just got the gm cold air intake on the truck and had the dealership adjust the maf.

I think GM’s plan was to pull air from the gap between the hood and the grille for the intake but to answer your question you can remove the top left one to see if it makes any difference.  You will throw a code only if the actuator motor does not completely open or close, there are no limit switches on the vanes, it is in the actuator motor in the center of the vanes.  So basically you can remove all of them as long as the actuator is moving.  I work for a company that makes the shutters and we have some vehicles especially HD that they intestinally leave out a set of vanes for cooling. With that said the T1XX vanes are not easy to snap out, you may break it trying to pull it out and your drive link will still move up and down so make sure it is not obstructed or the actuator motor will “think” one is jammed and throw a code.

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Presley Enthusiast

Presley

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I was able to remove the top left and right shutters without damaging them. Just not sure when I’m going to have a long enough drive so I can tell if it helps 

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M1ck3y Senior Enthusiast

M1ck3y

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Your not getting a ram air effect from that, your basically just letting in more dirt and water.

Presley Enthusiast

Presley

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It’s hard to tell, cause I had just got the gm cold air intake on, but I did takeout two of the aero shutters and it did feel like it had more pep while on the interstate. 

Presley Enthusiast

Presley

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3 minutes ago, M1ck3y said:

Your not getting a ram air effect from that, your basically just letting in more dirt and water.

If you have the aero shutters you won’t, but when you remove the top left and top right shutter you will. 

  • 3 years later...
Bikerjon Enthusiast

Bikerjon

Posted
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22 hours ago, typhoon186 said:

how did you remove them?

I wouldn't be waiting for a response from Presley. He hasn't visited this site since April 2021.

typhoon186 Enthusiast

typhoon186

Posted
Posted

Installed my Stillen scoop and removed the top row of blade in the shutters.  Very easy to remove them by pulling the center towards the engine with both hands while pulling the ends out of the housing.  slips right out without damaging anything.  the actuator and other blades work as usual.  this give a clean shot of direct air into the scoop even when the shutters close.

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