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Hello Folks I have a 16 Z06 and purchased a K&N on road cold air intake it has the port for the MAS to plug into. After reading the installation instructions they want me to completely disconnect the battery prior to installation and my question is Why do I have to do this? I sent a question to their helpline and asked if there was anything I had to change on the programming of the car and their tech said NO and the computer would sort all that out and there is nothing I have to do. SO I have two different stories here? I am [posing the question to you folks do I have to disconnect the battery prior to installation? and will the onboard computer recognize my changes to the intake and make its changes automatically?

Thanks much for your thoughts guys!
Karl
 

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No
There is no reason to disconnect the battery and lose all the learned settings as when you're replacing the MAF there is nothing electrical on
Also, this causes all on-board smog tests to be reverted to a non-complete state, which means failed smog tests and can take several drives for them to get back to a complete/passed state.

Why change the stock one when a simple replacement of an air cleaner should have no effect to airmass
other than if the filter has to be oiled to be sure the filter is not over oiled which will be pulled across the MAF and cause it to incorrectly report what the airmass is and cause the PCM to falsely command the fuel injectors to be too rich or lean

If you do disconnect battery then expect to do an idle and then drive relearn

If their design is not good, you could expect to see improper fueling and require tuning the PCM calibration
the only way to know is using a OBD-II scanner and see how the engine is running
 

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To answer the question of whether a cold air intake system is ultimately worth it, the answer is yes. Even if you don't notice the benefits, they are still present and are actively helping your car to run more efficiently.

15-25 additional horsepower

However, K&N intakes typically add an average of 15-25 additional horsepower over a stock system**. Each kit undergoes significant testing to help ensure that the filter and intake tube are positioned to deliver large increases in airflow and horsepower.
 

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To answer the question of whether a cold air intake system is ultimately worth it, the answer is yes. Even if you don't notice the benefits, they are still present and are actively helping your car to run more efficiently.

15-25 additional horsepower

However, K&N intakes typically add an average of 15-25 additional horsepower over a stock system**. Each kit undergoes significant testing to help ensure that the filter and intake tube are positioned to deliver large increases in airflow and horsepower.
That is marketing hype junk
There is zero way a high dollar air filter adds even 3 HP over a stock clean one
If it was that easy, safe way to add 25 HP just over a filter, then GM would gladly use them

Yes a CAI will be a positive but if there was that much gain then the PCM would have to be tuned for it as it is not going to adjust fuel or timing over a better charge to the cylinders.
Fact is most oil based filters get over oiled and that ends up on the MAF sensor causing it to output incorrect amount of airmass, ill performance and forcing the PCM to incorrectly command how long the fuel injectors will be commanded on

Interesting Corvette models prove stock setup is not limiting airmass as the base Corvette to the ZR1 using same filter to throttlebody setup and the higher HP output of those engines are not starving for airmass due to stock filter

Most CAIs sold are junk designed and still pull in the hotter airmass near radiator, so careful in deciding which one to purchase.

Really wanting a colder airmass charge to cylinders is installing a water/Methanol kit and tune PCM for those gains.
 

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Hello Folks I have a 16 Z06 and purchased a K&N on road cold air intake it has the port for the MAS to plug into. After reading the installation instructions they want me to completely disconnect the battery prior to installation and my question is Why do I have to do this? I sent a question to their helpline and asked if there was anything I had to change on the programming of the car and their tech said NO and the computer would sort all that out and there is nothing I have to do. SO I have two different stories here? I am [posing the question to you folks do I have to disconnect the battery prior to installation? and will the onboard computer recognize my changes to the intake and make its changes automatically?

Thanks much for your thoughts guys!
Karl
I installed the K&N in my 2016 Z06 shortly after I purchased the car. I did not disconnect the battery and had no problems with the install.
 

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Let's say you get a gain in HP. So what? Let's say it really does 15-25 additional HP. So what?

First, assuming there is a gain, you will talk yourself into feeling it. Fact is, you can't.

Second, pay attention to the oil mist coming off of those things. That is what affects your HP....Negatively. Oiled MAF. Not good.

Third, the point about GM using it if worked hides the fact that the damn things don't filter as good as stock air filters. Nowhere near. That is why GM does not use it. Those filters are crap if one really drives the car instead of admiring it sitting in the garage. The oil will turn into Saudi Aribian crude because it will be full of sand. Get on youtube, go to Project Farm's site, and pull up his air filter tests. It cannot be called science, but I bet he convinces you in the end that oiled air filters suck as air filters.

Fourth, racingvette knows exactly what he is talking about. Install a water/methanol kit and tune the PCM. You will be able to feel and measure those gains.

These oiled filters have become The King's New Clothes fable. You hear enough people say what you want to hear then it evenually must be right. Right?
 

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Let's say you get a gain in HP. So what? Let's say it really does 15-25 additional HP. So what?

First, assuming there is a gain, you will talk yourself into feeling it. Fact is, you can't.

Second, pay attention to the oil mist coming off of those things. That is what affects your HP....Negatively. Oiled MAF. Not good.

Third, the point about GM using it if worked hides the fact that the damn things don't filter as good as stock air filters. Nowhere near. That is why GM does not use it. Those filters are crap if one really drives the car instead of admiring it sitting in the garage. The oil will turn into Saudi Aribian crude because it will be full of sand. Get on youtube, go to Project Farm's site, and pull up his air filter tests. It cannot be called science, but I bet he convinces you in the end that oiled air filters suck as air filters.

Fourth, racingvette knows exactly what he is talking about. Install a water/methanol kit and tune the PCM. You will be able to feel and measure those gains.

These oiled filters have become The King's New Clothes fable. You hear enough people say what you want to hear then it evenually must be right. Right?
K&N's dyno test showed a 50HP gain. Sounds incredible doesn't it? Still, I have no oil inside my intake tube, and oil based filters do a better job of filtering out dust and dirt. They're widely used in off road equipment for that reason. The K&N is not an oil bath filter and if cleaned and treated properly they work very well.
 

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HaHaHa !
Can I sell you some sparkplugs that gain 30 HP :)

and if you polish the MAF you will gain 30 HP and another 30HP polishing the throttle body, so I suspect you think then you gain 110HP and then yank the CATs and gain another 30 HP
Keep it up, and your stock engine will outperform a stock supercharged Z06 or ZR1

K&N will not even publish real proven gains with their far overpriced filters and in fact that oil just plugs up the filter faster than stock ones and the oil does not get onto the MAF, just ask any repair shop that found it the cause of a crappy running engine

Quote K&N :

K&N offers a guaranteed increase in horsepower and torque for all K&N intake systems. Dynamometer tests indicating estimated horsepower and torque increases compared to the OEM intake system will appear on the "Product Details" page for each performance intake system. Results will vary.

K&N® provides estimated SAE corrected horsepower gains that are based on actual dynamometer testing for a specific or similar vehicle.
The actual horsepower increase a consumer will receive will vary depending on such things as vehicle condition, fuel, weather, and other circumstances.
It would be impractical to test every possible vehicle configuration or year in which a particular engine may be used; therefore, many of our estimates are based upon similar engine/vehicle/year dynamometer testing that we believe to be representational for the vehicle listed.

Even they do not want to give hard numbers and their own content they question their marketing hype
They claim testing on a dyno yet can only estimate the gains :--)

Oh, in most case people are too lazy or know that the oiled filer they installed needs to be cleaned or clean it but then over oil it and cause their own engine problems and why makers like GM do not trust the owners in proper cleaning and reason they do not use them, hell neither does their warranty

K&N should name the next Corvette filter "estimate" model

A tip :
if you live at 5,000 feet elevation and want to see a 40 HP gain, move down to sealevel, I assure you'll see those gains, and it's free :)
 

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Oops

K&N Oil Filter Failures – Class Action Investigation

Sauder Schelkopf is currently investigating a class action lawsuit against K&N Engineering for catastrophic failures relating to its oil filters sold for automobiles, motorcycles, atvs and powersports.

It is alleged that K&N oil filters can suddenly separate and shred, resulting in possible engine fires and accidents.

Unfortunately, K&N may try to decline any liability for these sudden and unexpected oil filter failures.
As a result, individuals may have overpaid for a substandard product that can result in serious bodily injury and/or engine fires if such a failure occurs.
If you have purchased a K&N oil filter for your automobile, motorcycle, atv or powersport and experienced an oil filter failure, please contact the lawyers at Sauder Schelkopf.
 

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Density altitude is so crucial with these tests. For every 1000 ft in altitude gain above sea level a NA engine can lose ~3. % in power. So to your point with K&N’s disclaimer that weather is a factor, if you test on a day when the density altitude equals say 4500 ft vs 1500 ft you lose 9%. On a 500 hp NA motor you are now making 455 hp. Today where I live my density altitude is 3692 ft. But our altitude is 652 ft. So is not hard to lose 45 hp just like that.
 

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In the USofA we did away with most oil bath filters in the 40's and 50's in automotive applications. I'm telling you. It's The Emperor's (not the King's) New Clothes by Hans Christian Anderson, as follows:

Many years ago, there was an Emperor who was so very fond of new clothes that he spent all his money on them. He did not trouble about his soldiers. He did not care to go to the theatre. He only went out when he had the chance to show off his new clothes. He had a different suit for each hour of the day. Most kings could be found sitting in council. It was said of the Emperor, “He is sitting in his wardrobe.”

One day, two fellows calling themselves weavers came to town. They said that they knew how to weave cloth of the most beautiful colors and patterns. The clothes made from this wonderful cloth would be invisible to everyone who was unfit for the job he held, or who was very simple in character.

“These must, indeed, be splendid clothes!” thought the Emperor. “If I had such a suit, I might at once find out what men in my kingdom are unfit for their job. I would be able to tell the wise men from the foolish! This stuff must be woven for me immediately.” He gave large sums of money to both the weavers in order that they might begin their work at once.

So the two pretend weavers set up two looms. They worked very busily, though in reality they did nothing at all. They asked for the finest silk and the purest gold thread. They put both into their own knapsacks. Then they pretended to work at the empty looms until late at night.

“I should like to know how the weavers are getting on with my cloth,” said the Emperor to himself one day. When he remembered that a simpleton, or one unfit for his job would be unable to see the cloth he began to worry. To be sure, he thought he was safe. However, he would prefer sending somebody else to bring him news about the weavers, and their work. All the people in the kingdom had heard of the wonderful cloth. All were eager to learn how wise or how foolish their neighbors might be.

“I will send my faithful old wise man to the weavers,” said the Emperor atlast. “He will be best able to see how the cloth looks. He is a man of sense. No one can be better for his job than he is.”

So the faithful old wise man went into the hall where the thieves were working with all their might at their empty looms. “What can be the meaning of this?” thought the old man, opening his eyes very wide. “I cannot find the least bit of thread on the looms.” However, he did not say his thoughts aloud.

The thieves asked him very kindly to be so good as to come nearer their looms. Then, they asked him whether the cloth pleased him. They asked whether the colors were not very beautiful. All the time they were pointing to the empty frames. The poor old wise man looked and looked. He could not see anything on the looms for a very good reason. There was nothing there.

“What!” thought he again. “Is it possible that I am a fool? I have never thought so myself. No one must know it now if I am so. Can it be, that I am unfit for my job? No, the Emperor must not know that either. I will never tell that I could not see the stuff.”

“Well, Sir!” said one of the weavers still pretending to work. “You do not say whether the cloth pleases you.”

“Oh, it is excellent!” replied the old wise man, looking at the loom through his spectacles. “This pattern, and the colors, yes, I will tell the Emperor without delay, how very beautiful I think them.”

“We shall be much obliged to you,” said the thieves. Then they named the many colors and described the pattern of the pretended stuff. The old wise man listened with care to their words so he might repeat them to the Emperor. The thieves asked for more silk and gold saying that it was necessary to complete what they had begun. Once again they put all that was given them into their knapsacks. They went on working with as much effort as before at their empty looms.

The Emperor soon sent another man from his court to see how the weavers were getting on. Now he wanted to know if the cloth would soon be ready. It was just the same with this gentleman as with the wise man. First he looked closely at the looms on all sides. He could see nothing at all but the empty frames.

“Does not the stuff appear as beautiful to you, as it did to my lord the wise man?” asked the thieves of the Emperor’s second advisor.

“I certainly am not stupid!” thought the man. “It must be, that I am not fit for my good job! That is very odd. However, no one shall know anything about it.”

And so he praised the stuff he could not see. He declared that he was happy with both colors and patterns. “Indeed, your Imperial Majesty,” he said to his emperor when he returned. “The cloth which the weavers are preparing is extraordinarily magnificent.”

The whole city was talking of the splendid cloth, which the Emperor had ordered to be woven.

Finally, the Emperor himself wished to see the costly material while it was still in the loom. He took many officers of the court and the two honest men who had already admired the cloth. As soon as the weavers saw the Emperor approach, they went on working faster than ever although they still did not pass even one thread through the looms.

“Is not the work absolutely magnificent?” said the two officers of the crown, already mentioned. “If your Majesty will only be pleased to look at it! What a splendid design! What glorious colors!” and at the same time they pointed to the empty frames; for they imagined that everyone else could see this exquisite piece of workmanship.

“How is this?” said the Emperor to himself. “I can see nothing! This is indeed a terrible affair! Am I a simpleton, or am I unfit to be an Emperor? That would be the worst thing that could happen—Oh! The cloth is charming,” said he, aloud. “I approve of it completely.” He smiled most graciously and looked closely at the empty looms. No way would he say that he could not see what two of his advisors had praised so much. Everyone with the Emperor now strained his or her eyes hoping to discover something on the looms, but they could see no more than the others.

Nevertheless, they all exclaimed, “Oh, how beautiful!” and advised his majesty to have some new clothes made from this splendid material for the parade that was planned. “Magnificent! Charming! Excellent!” was called out on all sides. Everyone was very cheerful. The Emperor was pleased. He presented the weavers with the emblem of an order of knighthood. The thieves sat up the whole of the night before the day on which the parade was to take place. They had sixteen lights burning, so that everyone might see how anxious they were to finish the Emperor’s new suit. They pretended to roll the cloth off the looms. They cut the air with their scissors and sewed with needles without any thread in them. “See!” cried they, at last.

“The Emperor’s new clothes are ready!”

The Emperor, with all the grandees of his court, came to the weavers. The thieves raised their arms, as if in the act of holding something up. “Here are your Majesty’s trousers! Here is the scarf! Here is the mantle! The whole suit is as light as a cobweb; one might fancy one has nothing at all on, when dressed in it.”

“Yes indeed!” said all the courtiers, although not one of them could see anything of this special cloth.

The Emperor was undressed for a fitting, and the thieves pretended to array him in his new suit. The Emperor turned round and from side to side before the looking glass.

“How splendid his Majesty looks in his new clothes, and how well they fit!” everyone cried out. “What a design! What colors! These are indeed royal robes!”

“I am quite ready,” said the Emperor. He appeared to be examining his handsome suit.

The lords of the bedchamber, who were to carry his Majesty’s train felt about on the ground as if they were lifting up the ends of the mantle. Then they pretended to be carrying something for they would by no means want to appear foolish or not fit for their jobs.

The Emperor walked under his high canopy in the midst of the procession, through the streets of his capital. All the people standing by, and those at the windows, cried out, “Oh! How beautiful are our Emperor’s new clothes! What a magnificent train there is to the mantle; and how gracefully the scarf hangs!” No one would admit these much admired clothes could not be seen because, in doing so, he would have been saying he was either a simpleton or unfit for his job.

“But the Emperor has nothing at all on!” said a little child. “Listen to the voice of the child!” exclaimed his father. What the child had said was whispered from one to another. “But he has nothing at all on!” at last cried out all the people. The Emperor was upset, for he knew that the people were right. However, he thought the procession must go on now! The lords of the bedchamber took greater pains than ever, to appear holding up a train, although, in reality, there was no train to hold, and the Emperor walked on in his underwear.
 

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HaHaHa !
Can I sell you some sparkplugs that gain 30 HP :)

and if you polish the MAF you will gain 30 HP and another 30HP polishing the throttle body, so I suspect you think then you gain 110HP and then yank the CATs and gain another 30 HP
Keep it up, and your stock engine will outperform a stock supercharged Z06 or ZR1

K&N will not even publish real proven gains with their far overpriced filters and in fact that oil just plugs up the filter faster than stock ones and the oil does not get onto the MAF, just ask any repair shop that found it the cause of a crappy running engine

Quote K&N :

K&N offers a guaranteed increase in horsepower and torque for all K&N intake systems. Dynamometer tests indicating estimated horsepower and torque increases compared to the OEM intake system will appear on the "Product Details" page for each performance intake system. Results will vary.

K&N® provides estimated SAE corrected horsepower gains that are based on actual dynamometer testing for a specific or similar vehicle.
The actual horsepower increase a consumer will receive will vary depending on such things as vehicle condition, fuel, weather, and other circumstances.
It would be impractical to test every possible vehicle configuration or year in which a particular engine may be used; therefore, many of our estimates are based upon similar engine/vehicle/year dynamometer testing that we believe to be representational for the vehicle listed.

Even they do not want to give hard numbers and their own content they question their marketing hype
They claim testing on a dyno yet can only estimate the gains :--)

Oh, in most case people are too lazy or know that the oiled filer they installed needs to be cleaned or clean it but then over oil it and cause their own engine problems and why makers like GM do not trust the owners in proper cleaning and reason they do not use them, hell neither does their warranty

K&N should name the next Corvette filter "estimate" model

A tip :
if you live at 5,000 feet elevation and want to see a 40 HP gain, move down to sealevel, I assure you'll see those gains, and it's free :)
It appears you're not interested in an adult discussion. Please don't bother me.
 

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It appears you're not interested in an adult discussion. Please don't bother me.
Then do not spew marketing hype that only causes people who do not have the experience to go out and spend hundreds of dollars for a $30 airfilter where in fact a cylinder only holds a maximum of about 1 gram total of air and fuel
As long as a stock filter is clean, and we live on Earth,
it is quite easy for a filter and the reserve of the intake manifold to supply even enough air for even the LS7 427 CI Z06

See the same crap with the C8s 460 HP that have a dual path of outside air flowing in with a large air filter and still vendors claim that is junk and pay them $500 for their airfilter yet the same setup for the C8 Z06 puts out 670 HP

Save your money for a good CAI and/or water/methanol injection as it is quality not quantity that is needed
 

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I know I should not go where I am about to go, but this is your first post, to a forum you just joined an hour ago, stating this is why you quit posting on these forums. Am I missing something here?
 
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