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K&n Air Filter, 07 Sierra Vortec Max

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jason2006 Enthusiast

jason2006

Posted
Posted

the K&N will give you 200 extra horsepower and you will never have to fill up ever again. Just kidding, it is a very minor gain on both if any. It will increase your engines dirt intake though.

omegafiler Senior Enthusiast

omegafiler

Posted
Posted

The drop-in filter won't do a whole lot, very minor on a stock setup, but I like 'em. They increase air flow and reduce restriction, which is a good thing. Properly maintained/oiled, you shouldn't get much extra dirt in your engine. Any that ya do, would get burned off. Whatever doesn't, would be resolved by a simple oil change, which ya gotta do anyways. Every 3k here, according to my extended warranty contract at least. :thumbs:

 

Now the K&N intake kits do have proved HP/TQ gains, in particular with other supporting mods. Such as exhaust, programmer, etc. The more you mod, the more air your engine is going to want.

HawkeyeOC Senior Enthusiast

HawkeyeOC

Posted
Posted

No mileage difference at all with the filters. I work in dusty off-road environments and they help a lot in those conditions. Regular filters don't handle the dust very well. You might notice SLIGHT horsepower gains especially at lower speeds, but I am not sure I believe the claims by the manufacturers.

 

Also, be careful not to over oil them. You don't want too much oil being sucked into the engine!

C & A s Dad Senior Enthusiast

C & A s Dad

Posted
Posted
No mileage difference at all with the filters. I work in dusty off-road environments and they help a lot in those conditions. Regular filters don't handle the dust very well. You might notice SLIGHT horsepower gains especially at lower speeds, but I am not sure I believe the claims by the manufacturers.

 

Also, be careful not to over oil them. You don't want too much oil being sucked into the engine!

 

Hawkey, I hate to be contradict what you have said, but I do not think I have ever heard anyone say the K & N wil handle dirt and dust better than the OE paper filter. I have heard many claims concerning them but better filtration is not one of them. If you mean they will not clog as fast as a paper filter that may be true becasue they do not stop as much dirt. Of course what they do not stop, goes into your engine. In any case where I have seen someone run an oil analysis on an engine running a oiled cotton gauze filter, the silicone levels would be higher than an paper filter. If you can provide more info to help us better understand your claim, it would be appreciated. :thumbs:

 

To the original person posting the question. You can get opinions all over the board on this. I think if you read 100 post on this subject you will come down to: These filters will provide slightly better air flow with less restriction. In some cases there could be a slight improvement in MPG and/or HP but certainly not significant. They will allow more dirt to enter your engine. How much is the question and you have to decide if this is acceptable to you. Afterall, it is your truck and your have either paid for it or are paying for it.

  • 3 weeks later...
forgottenmemory Enthusiast

forgottenmemory

Posted
Posted
No mileage difference at all with the filters. I work in dusty off-road environments and they help a lot in those conditions. Regular filters don't handle the dust very well. You might notice SLIGHT horsepower gains especially at lower speeds, but I am not sure I believe the claims by the manufacturers.

 

Also, be careful not to over oil them. You don't want too much oil being sucked into the engine!

 

Hawkey, I hate to be contradict what you have said, but I do not think I have ever heard anyone say the K & N wil handle dirt and dust better than the OE paper filter. I have heard many claims concerning them but better filtration is not one of them. If you mean they will not clog as fast as a paper filter that may be true becasue they do not stop as much dirt. Of course what they do not stop, goes into your engine. In any case where I have seen someone run an oil analysis on an engine running a oiled cotton gauze filter, the silicone levels would be higher than an paper filter. If you can provide more info to help us better understand your claim, it would be appreciated. :rolleyes:

 

To the original person posting the question. You can get opinions all over the board on this. I think if you read 100 post on this subject you will come down to: These filters will provide slightly better air flow with less restriction. In some cases there could be a slight improvement in MPG and/or HP but certainly not significant. They will allow more dirt to enter your engine. How much is the question and you have to decide if this is acceptable to you. Afterall, it is your truck and your have either paid for it or are paying for it.

 

 

 

OK with the K & N part, if the filter provides better air flow and less restriction, How does it allow more dirt to enter your engine?

steppetoe Enthusiast

steppetoe

Posted
Posted

I think K&N filters are a waste of time. Or worse. If not oiled properly they can be ineffective or actually harmful to your engine. Even best case scenario, I do not believe there will be any difference whatsover in mileage or performance.

 

My opinion is the K&N filters are brilliantly marketed junk. I wouldn't use them if they were free.

VMax2007 Senior Enthusiast

VMax2007

Posted
Posted
I think K&N filters are a waste of time. Or worse. If not oiled properly they can be ineffective or actually harmful to your engine. Even best case scenario, I do not believe there will be any difference whatsover in mileage or performance.

 

My opinion is the K&N filters are brilliantly marketed junk. I wouldn't use them if they were free.

 

I agree. I used one for 7 years in my 2000. No gain in anything, except I didn't have to change it for 50K miles, But then I had to pay $30-$40 for a recharge kit and had to clean/oil it. Never again, not worth it.

Silverado4x4 Senior Enthusiast

Silverado4x4

Posted
Posted

OK with the K & N part, if the filter provides better air flow and less restriction, How does it allow more dirt to enter your engine?

 

Real easy better air flow means less restriction so the element is not as dence as a factory filter and that means the element is more open allowing dirt to pass through, as said above I wouldnt put one of these in my truck if they were free and if you think about it the money you spend on a recharge kit you can buy a new ac filter. A friend of mine had one in his car and after running it for a few months he removed the element and found dirty on the inside of his air cleaner assembly and in his air cleaner tube going to his throttle body so you know it wasnt filtering dirt and some of it was going in his motor. He removed the k&n and went back to his stock filter and problem was solved. K&N are pure junk and should be called K&Junk filters.
HawkeyeOC Senior Enthusiast

HawkeyeOC

Posted
Posted
No mileage difference at all with the filters. I work in dusty off-road environments and they help a lot in those conditions. Regular filters don't handle the dust very well. You might notice SLIGHT horsepower gains especially at lower speeds, but I am not sure I believe the claims by the manufacturers.

 

Also, be careful not to over oil them. You don't want too much oil being sucked into the engine!

 

Hawkey, I hate to be contradict what you have said, but I do not think I have ever heard anyone say the K & N wil handle dirt and dust better than the OE paper filter. I have heard many claims concerning them but better filtration is not one of them. If you mean they will not clog as fast as a paper filter that may be true becasue they do not stop as much dirt. Of course what they do not stop, goes into your engine. In any case where I have seen someone run an oil analysis on an engine running a oiled cotton gauze filter, the silicone levels would be higher than an paper filter. If you can provide more info to help us better understand your claim, it would be appreciated. :rolleyes:

 

To the original person posting the question. You can get opinions all over the board on this. I think if you read 100 post on this subject you will come down to: These filters will provide slightly better air flow with less restriction. In some cases there could be a slight improvement in MPG and/or HP but certainly not significant. They will allow more dirt to enter your engine. How much is the question and you have to decide if this is acceptable to you. Afterall, it is your truck and your have either paid for it or are paying for it.

 

 

I meant to say that they don't clog as fast as a paper element would. You just wash them and re-oil them. The paper ones need to be changed frequently in dusty conditions. I had one on for 6 years and 150,000 miles it gave me no problems. I can see how improperly maintaining them can cause a lot of problems though. They seem to cause enough headaches for people that GM is offering an oil free High Perormance filter and intake for the NBS. My dealer confirms that they get a lot of trucks in that are messed up with K&N type filters.

 

Sorry for the confusion.

svensk Senior Enthusiast

svensk

Posted
Posted

Messed up cuz of teh oiled up filters? :rolleyes:

 

All you have to do is squirt your MAF with some cleaner about a week or two after you oil it and problem avoided. I normally do it like once every couple months anyway. The oil itself can't hurt the engine, especially in the tiny quantity that your supposed to apply.

forgottenmemory Enthusiast

forgottenmemory

Posted
Posted

good to here I will just stick with stock filters , its not hard to unscrew the 4 screws and slap a new one in every 30000 miles

 

I didnt know the truth about K % N so thanks for the info

  • 8 months later...
mrual Enthusiast

mrual

Posted
Posted
Will this air filter increase performance? If so, what will it do for my mileage?

 

 

I just installed a K&N 63 series cold intake on my silverado 5.3L and all you fill is Horsepower love it when your going 65-70 and you need to pass just hit the gas and your gone , as far as gas mileage i went from 18.3 to 18.6 Hwy and it was still going up but had to get off the freeway or my wife would wonder why i was in california 4,000 miles away :( and if anyone tells you watch out for the (oil) air filters go to K&N web site i talked to a tech there about the oil myth and thats what it is he emailed me the tests to prove it i think after 35 years of making car products and testing it big time before it goes out to us i really think thay know what there talking about .. but like i said go to K&N`s web site and you can read all you want about the great (oil) air filter myth

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