Im sure there is a thread out there about this, but has anybody put the K&N 77 Intake on their 2007 tahoe yet? If so, can you tell a difference? How much, how does it look installed?

 

I would look into some other models before taking the plung. I looked into these on another vehicle I had and came to find out it made that particular vehicle slower 0-60. Just my .02

Good Luck

 

I was wondering thesame thing. I am debating between the K&N or the GM Performance. I think I might just spend the extra money for the GM, because of the cool chrome cover.
http://cgi.ebay.com/ebaymotors/2007-...em250146418147

http://cgi.ebay.com/ebaymotors/GM-PE...em330150270935

 

I'd rather go with the K&N if you are looking at the GM one. You have to remember that anything metal inside the compartment will retain heat. And when it's especially tied to intake air temperature, those few more degrees of temp can harm performance.Having a metal box cover AND intake tube that are metal, to me, will retain too much heat and decrease the added benefit of the kit itself.

I was looking at the K&N or Airraid kit or my 07 Tahoe, both are price similarly.

just my .02

 

Omnicube,
Thanks for the info, I am going to look into the airraid, that is a new one to me, im learning something everyday for these bad boys! I have only had my Tahoe for 5 days!

 

LOL...i've had mine for 7 days now already pricing out exhaust and an intake....still up in the air though for what I want.

In the interim, I have a drop in K&N and have tuned it up a bit using vcm editor from www.hptuners.com.

But it won't end there.

 

This is a big misconception.

Natural thinking would lead youto believe that if you have a steel and a plastic piece of tubing sitting in a heated enviroment, the steel would be hotter than the plastic. This would be a true observation.

NOW:

If air would sit or linger in the tube for a while than the incoming air would have a chance to adjust to its ambient surroundings. In a automobile application, outside air is being drawn through the can and tube so fast that thecombo has really no chanceof changing the temperature of the incoming air.

The temperature of the incoming air is a crucial piece of the puzzle to making horsepower with CAI's. Lower intake or air temperatures make power. ie better burn etc,etc.....

With closed air boxes majority of the inlet air is being drawn from outside of the engine compartment which is closer to theoutside air temperature.
Open air elements get most of the airflow from inside the engine compartment along with a little from the outside usually leading to higher inlet temperatures because of engine heat thus increasing intake temps.

The materials of the tubing are defentitly a factor but for less obvious reasons.
A metal tubing will keep its shape and have less chance of changing the flow and should outlast plastics.
Plastic tubes have more of a chance of flex changing the diameter of the tubeand cracking due to heating and cooling via the engine compartment.

When choosing an airflow system things to look for would be:
Quality construction of the tubing and hoses and clamps.
How does the unit draw its air
And MOST important FILTER. This is the most overlooked item when searching for an Airflow system.

All of the units will allow more air availability to the engine but what type of air is the Question. I believe in closed airbox systems. Fact of the matter is open your hood or your friends hood and take a good look at how dirty engine bays get. With open air systems, 8 out of 10 we see, the filters are covered with dirt and look just nasty. How can this be better for your engine? But the frightening fact of these ope air systems are the ability to filter out dirt. We removed filters and have noticed a dirt or light dusting in the tubing leading to the intake. Not good.

Im not saying I'm right but I've done some testing and these are the results we've seen....and my very brief summary.
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I was speaking more of the tube itself on being metal. Most of the popular intake systems Volant, Airraid, K&N, have poly intake tube and are sealed. The K&N and Airraid do (should) seal to the hood when closed, due to stripping being there.

I dunno though, i've still been looking. I have looked at the Volant, just cause the metal top, it will match the chrome on my LTZ. I need to make up my mind soon on the intake and exhaust, cause I plan on scheduling a dyno day for the "HOE". The hptuner cable needs to go back to my buddy.

 

Guy's, I left my post last night before I hit the pillow and I come back to all this scientific talk. The reason why I was debating between these two and not the cheaper black plastic ones is basically for the eye appeal. So whenthe service shop orIpop the hood formy friends, it's like POW in you face.

 

Cool then....

The GM definitely looks way more pimp with the chrome intake tube and metal top.You pay a little more, but it has the "Bling Bling" factor more.

The Volant looks pimp as well, but doesn't have the chrome intake tube, plus I htink the Volant is a little more.