Duramax cold air intake

Laan1237 · April 27, 2015

Anyone put a cold air intake on their 2015 with stock exhausts yet? I'm not expecting much of anything for power/mpg increase, more just curious if it makes the turbo whistle Anymore noticeable

KMGZ400 · April 28, 2015

Don't know what it will do on a stock LML, but it makes a decent amount of difference on my tuned and deleted LML

Cowpie · April 28, 2015

You want to decrease the temp of the air going thru the fresh air side of the turbo and into the intercooler, the best thing is a turbo blanket. I do not have a Dmax, but I ran turbo blankets on my Jeep Liberty diesel, my Cummins ISX, and my Detroit 60. doing so will improve exhaust flow (and lower EGT's typically by 100-200 degrees on hard pulls), lower temp in engine compartment, and decrease the temps on the fresh air side of the turbo by 20-30 degrees easily, which improves air density quite a bit. Lots of heat from the exhaust side of the turbo radiates to the cool side. You blanket the hot side and this is eliminated. After running turbo blankets for over a decade, I would have it no other way. No, you are not going to destroy a turbo by putting a blanket on it. One of my turbos has over 400,000 miles on it and nary a problem, and it has had a blanket on it since day one.

Check out the heat testing videos on this link....

http://ptpturboblankets.com/video_installation.php

SMiller · April 30, 2015

You want to decrease the temp of the air going thru the fresh air side of the turbo and into the intercooler, the best thing is a turbo blanket. I do not have a Dmax, but I ran turbo blankets on my Jeep Liberty diesel, my Cummins ISX, and my Detroit 60. doing so will improve exhaust flow (and lower EGT's typically by 100-200 degrees on hard pulls), lower temp in engine compartment, and decrease the temps on the fresh air side of the turbo by 20-30 degrees easily, which improves air density quite a bit. Lots of heat from the exhaust side of the turbo radiates to the cool side. You blanket the hot side and this is eliminated. After running turbo blankets for over a decade, I would have it no other way. No, you are not going to destroy a turbo by putting a blanket on it. One of my turbos has over 400,000 miles on it and nary a problem, and it has had a blanket on it since day one.

Check out the heat testing videos on this link....

http://ptpturboblankets.com/video_installation.php

Good luck getting to the turbo and installing a blanket...

This isn't a semi we are talking about, it is a V8 that has the turbo stuffed into the firewall.

Laan1237 · April 30, 2015

Yea I was more just curious how a cold air intakes improves the turbo whistle with stock exhaust

Cowpie · April 30, 2015

Well, the Jeep Liberty Diesel I had, the turbo was in a very difficult position. That was a lot of motor crammed into a tight engine compartment. I had to remove several items to get to the turbo. If one actually wants to do something like this, they will find a way to do it. If they are dead set against doing something like this, they will never be convinced how much of a benefit it is. Those of us that have done the turbo blankets know better.