I installed the airaid jr intake on my wife's 2015 Yukon Denali and want to pass on a quick review of the experience...
-The instructions have you take off the little bracket that goes over the air box; you will be inclined to only unbolt the fender side and maybe loosen the part under the radiator cover.
-Get a panel popper, take the first plastic fastener off of the radiator cover and just take brace off. You won't be able to get the fender side of the bracket to line up if you leave the radiator side even loosely fitted.
-The next piece of advice, and kind of a gripe, is the airbox doesn't fit quite right. You will need to give it some oomph to get the holes to line up to bolt it to the truck. To get the bracket back over the new air box, start on the fender side and use it like a tire iron for a bike tube... Start the bolt, Then bring the radiator side up and bolt that in.
-When I put the map sensor in, there is no gasket, and makes me wonder if there will be any sort of vacuum leak there. I will test it out when I get more free time.
The head vent line that go back to the passenger side will hit the left over bracket from the original air box. When I get a spare moment, I am going to look further into if I can remove that bracket. Both pieces want to take up the same space if installed according to the directions...
As for noise, quiet on the freeway until you get 30% or more throttle...actually anywhere below 30% is the same as stock.
Above that it has a nice growl inside. It can get annoying for that dead tip in, where the throttle opens, air pressure heads back to the filter, but the injectors haven't added enough fuel to start her going...or maybe it's just too low in the cams vacuum cycle...but you will get this little growl then quiet on small throttle inputs if you let's say give it a little gas when cruising just to pop into the other lane. (I like to accelerate into a changed lane in case I didn't see someone behind me...gets me a little further away from cutting some one off...old habit)
Horsepower...couldn't tell you...
Mpg...I drove 50 miles today stock to my friends shop, got 19 mpg
I drove the 50 miles back, got a hair over 20.... And that's with messing around a very little... So time will tell...
I am fairly certain these intakes need a tune, especially because tip in flatness is much more pronounced.
-The instructions have you take off the little bracket that goes over the air box; you will be inclined to only unbolt the fender side and maybe loosen the part under the radiator cover.
-Get a panel popper, take the first plastic fastener off of the radiator cover and just take brace off. You won't be able to get the fender side of the bracket to line up if you leave the radiator side even loosely fitted.
-The next piece of advice, and kind of a gripe, is the airbox doesn't fit quite right. You will need to give it some oomph to get the holes to line up to bolt it to the truck. To get the bracket back over the new air box, start on the fender side and use it like a tire iron for a bike tube... Start the bolt, Then bring the radiator side up and bolt that in.
-When I put the map sensor in, there is no gasket, and makes me wonder if there will be any sort of vacuum leak there. I will test it out when I get more free time.
The head vent line that go back to the passenger side will hit the left over bracket from the original air box. When I get a spare moment, I am going to look further into if I can remove that bracket. Both pieces want to take up the same space if installed according to the directions...
As for noise, quiet on the freeway until you get 30% or more throttle...actually anywhere below 30% is the same as stock.
Above that it has a nice growl inside. It can get annoying for that dead tip in, where the throttle opens, air pressure heads back to the filter, but the injectors haven't added enough fuel to start her going...or maybe it's just too low in the cams vacuum cycle...but you will get this little growl then quiet on small throttle inputs if you let's say give it a little gas when cruising just to pop into the other lane. (I like to accelerate into a changed lane in case I didn't see someone behind me...gets me a little further away from cutting some one off...old habit)
Horsepower...couldn't tell you...
Mpg...I drove 50 miles today stock to my friends shop, got 19 mpg
I drove the 50 miles back, got a hair over 20.... And that's with messing around a very little... So time will tell...
I am fairly certain these intakes need a tune, especially because tip in flatness is much more pronounced.
