Does the intake cone brand/type matter?
 

So I got my car it has a K&N short ram intake on it, the cone is a bit warped. I'd like to purchase a new cone only not the entire $350 intake system. Can I just buy any K&N intake cone from like Autozone and be ok or do I need that specific cone that comes with this intake system?

Here is an image of the warped cone (Yes I know I have ordered an aluminum battery tie down since this car doesn't have any sort of battery tie down and I feel uncomfortable with that thing sliding around.)
https://cimg1.ibsrv.net/gimg/www.s2k...35cd166bf2.jpg

Also is it normal for these intakes to make a kind of "whistle" or squeak kind of sound at around 3-4k RPM's when I give it gas?

Mail K&N.

You can purchase K&N filters based on various dimensions.

You can ask K&N for your exact or you can measure and search their product list.

Seems sort of an out-of-the-way kind of way to replace it, can I not use another K&N cone from a local auto store?

https://cimg7.ibsrv.net/gimg/www.s2k...e0709ef146.png
This appeared on their website when I entered my vehicle. The cone by itself is a different cone than the one I have. The one I have is flat and has some carbon fiber on the end. Will replacing it make any real difference other than being aesthetically more pleasing?

https://www.knfilters.com/cold-air-i...-intake-system

The exact replacement filter for this kit is listed under accessories/related items, though anything with a 4" ID flange and not much longer than 6.5" should work.

Whistling sounds are usually normal with aftermarket intakes from my experience.

Jesus $122 for just a filter? =( is that because the bit of carbon fiber on it? Think I'll be ok with the $60 one I posted earlier? Says it's for an 02 S2000

Right? That's why I said anything matching the dimensions of the replacement should work. Parts stores usually have universal K&N filters for like $40 and should be able to get one with a 4" flange.

As far as filter brand you'll see people arguing over it much the same as oil brand. There's past threads about it on here.

I see

"Washable and reusable lifetime air filter
K&N Million Mile Limited Warranty"

Does that apply to me since I got the car from someone else who already had it installed?

Eh, you can try calling K&N and asking about it but I think the warranty is more for if the filter element breaks down.

Think there is any way to save my existing filter? Its just very ugly to look at lol.