Anybody Ever Install K&N Air Filters?

If so, what we're the results? Good, bad, I different. Any noticeable quicker throttle response, increased noise level, sest of the pants dyno estimates?

Thanks in advance. Also, the mobile version of this new forum tool does not give the option to declare 360, 430, or both, however I have a 430.

 

I've used K&N filters for many cars throughout my life and have never used the oil. I've always just cleaned them.

 

From K&N's website:

Engine Protection, Filtration:
Anyone can flow more air. The trick is to flow more air safely. In our opinion we hit the sweet spot - an optimal blend of high air flow, filtration efficiency, durability and dust capacity. We take filtration seriously. K&N Automotive Air Filter media has been tested both in-house and by independent labs using the ISO5011 test developed by the Society of Automotive Engineers. In addition we test many of our filters both in and out of the OE airbox ensuring proper fit and function. Our goal is to design filters with the maximum possible airflow achievable while providing guaranteed engine protection.

Engine Protection Limited Warranty:
Unlike many companies, our warranty for O/E replacement air filters and intake systems does extend beyond the replacement of a defective K&N part. For the original purchaser of the product, our warranty covers any engine damage or related costs incurred as a direct result of the use of a properly installed and maintained K&N O/E automotive replacement air filter or intake system on the specific vehicle for which the product was designed to be used by K&N. This includes reasonable vehicle repair costs directly related to an engine problem caused by the failure of a K&N product. Furthermore, we warrant that using our product will not result in a vehicle warranty denial. K&N will not be responsible for any indirect, consequential, special, contingent, or other damages not listed above.
We will promptly reimburse the consumer for the cost of the repair if a service provider denies warranty coverage as a result of a K&N product or claims that a K&N product has caused harm to your engine or vehicle. In order to receive reimbursement, we require each of the following:

1. The consumer must provide a written statement or repair order from the dealership or service provider in which the dealership or service provider blames the problem or warranty denial on a K&N product.
2. The service provider or consumer must provide K&N with all allegedly damaged parts. Many states have laws that require a service provider to retain all parts replaced during a vehicle repair, unless given consent to dispose of the parts by the consumer. K&N will pay the shipping cost to recover these parts.
3. The consumer must provide proof of purchase of the K&N product along with cooperation in helping us investigate the claim.

Once these steps have been completed, K&N will contact the service provider and collect evidence to support their claim. In the event we are not provided with sufficient evidence, we reserve the right to reject the claim and will use our best efforts to assist in establishing your rights toward the service provider under warranty or other provisions.​

Sounds like a lot of hassle, but in the end, it seems like an engine repair would be covered. Given this, one should feel confident, no? I just don't even like the looks of the OEM filters... they are so densely pleated you can't even see light through a brand new one.

 

The required oiling for a K&N filter is a catch-22, because in order for it to filter optimally, it needs the oil, which catches and holds dirt, requiring it to be cleaned and re-oiled more often. That said, they do work. However, I am wondering if there is a more OEM-like option available, that is a throw-away/replaceable paper element, but doesn't contain so many pleats that it becomes restrictive (like the OEM filters).

 

Negative. They've been dyno proven, and I personally verified this with my Spec Miata, where a K&N filter accounted for a consistent 2hp gain at the wheels. In Spec Miata terms, at least in those days, that was essentially a 2% gain. On an F430, given a similar gain, that would bump the crank rating to over 500.