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Get more power with K&N Intake Systems

5K views 23 replies 11 participants last post by  '05Train 
#1 · (Edited)
If you are on the market for the part which will provide you and your Cherokee with more power and better gain in horsepowers, search no more. Check out our 63 Series Aircharger Intake Kit designed for 3.2L Cherokee models. Increased airflow and noticeable gain in horsepowers are guaranteed.

K&N® 63-1569 - Jeep Cherokee 2015 63 Series Aircharger Intake Kit



Don't forget to check out this DYNOJET research to make sure that this teeny-tiny intake could turn your Jeep into real automotive beast:



What are you thoughts on it?
 
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#4 ·
Hey folks! CARiD is here with special holiday offer from K&N!

Don't miss the opportunity to help your engine to breathe better! Purchase any K&N Air Intake System and receive a $25.00 rebate, buy any Air Filter and get a $10.00 rebate.



No time to hesitate! The offer is valid for qualifying purchases made between November 1 and November 30, 2015.

Make sure to complete the Intake System PDF form or Air Filter PDF form below and follow the instructions to receive your check by mail.

http://www.carid.com/images/kn/info/kn-intake-rebate-form-nov.pdf
 
#8 · (Edited)
I just looked at those charts amd they showed a massi e 7.5hp (3.5%) gain at 6500rpm - a place where no one takes a Cherokee. Up to 3000rpm where most cherokees spend most of their life it actually shows a decrease in HP....

Hmm.. I wouldn't call that very good advertising!

Besides they are not legal down here anyway. Air filter element must be fully enclosed.
 
#10 ·
7.5HP and 4.6ft lb of torque is something that you can get from a 3.2L engine without a tune. I've seen numerous dyno tests in Import Tuner magazines and they showed better improvement even on smaller engines. Of course additional tune would make it even better.
As for the higher RPMs, I totally agree with you, a Cherokees are rarely taken that far, but if you floor it - it will perform at it's best. Torque is the most important for an SUV, and the good thing about it is that it kicks-in in full right at 4500RPM.
 
#11 ·
I kind of figure if there was a way to increase HP/performance, maintain mpg standards (as required by the EPA), and provide required air filtration quality/protection then FCA would have them on all their Cherokees.
I do not think the install unit cost would be much more than what they have now. Even if a bit more what's that going to add to the total cost.
I would guess that there is little to no benefit for most drivers. Also I would have to question the protection issue on an exposed filter. That protection issue is water/moisture. In the unlikely event of water getting into the air flow, would not be good for the engine. With an exposed filter the likely hood increases. I also believe this filter mounts toward the front and a bit lower than the OEM filter. That alone would increase the water issue.
But again that is my view point and anyone is free to install one if they choose.
 
#12 ·
AFE intake gets you more fuel economy, the reason FCA doesn't put a better intake in, its louder (people dont' like that) and its the reason why most car companies put **** tires on from the factory, it costs more money to put better quality tires on, and they want to make money. It really comes down to cost and not that it's "better for the vehicle"
 
#13 · (Edited)
With a cone filter, water is only an issue, assuming the filter element is of a good quality, if the entire filter is submerged in it. Then it will be ingested by the engine. Just getting wet is a non-issue. I've had cone filters on my 350Z and Subaru STi, both of which sit significantly lower than the Cherokee, and they've gotten wet before, with 0 problems. I currently have the 77 series K&N intake on my TH. It came with the car when I bought it used, and have had no problems with that to date. As far as gains in performance... 7hp is trivial, imo. those numbers really won't be noticed by the driver.

http://www.knfilters.com/search/product.aspx?prod=77-1569KS
 
#15 ·
The chart measures horsepower and torque at wide open throttle, when the motor needs the most air and fuel. At normal throttle openings and normal RPMs, you're not gaining a thing, and probably losing power (as the chart displays). The stock intake isn't a restriction at 3,000RPM and part-throttle.
 
#16 ·
1.5L/100 kms increase in fuel economy all around, can't argue with that, but people will continue to say It doesn't do anything and that's fine. With fuel prices the way there are here in SK, intake gets paid off in about 20000kms, but lets all say it doesn't work =)

My Compass with a K&N intake is 1.5/2L per 100kms better as well, but that doesn't matter either.
 
#17 ·
Not calling you a liar, but that's pretty substantial for just an air filter.

The only way that intake can increase your mileage is by leaning out the mixture. By adding more air than the ECM can compensate for, the mixture leans beyond parameters. Lean enough to burn a valve or piston? Probably not, but still.

Your Jeep, your money, your risk.
 
#22 ·
I just explained it. Twice. You've added air that your engine doesn't need and that the ECM can't compensate for, so you're running leaner than you should and leaner than can be compensated for. So you're seeing better mileage at the cost of power. It probably isn't lean enough to hurt anything.

Without a controlled test you can't isolate the intake as the cause of your improved mileage, but if you want to "credit" the intake, what I've described is the only way possible.
 
#24 ·
BTW, if you're not hand-calculating your mileage (or using an app like Fuelly), you don't have a good picture of what your mileage is. Using the dash display is like playing darts in the dark. My Fuelly mileage has been both over and under what's displayed, and there's no consistent difference in the gauge and the actual mileage.
 
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