So yeah, I've had this car for awhile, and now that it's getting old, I felt like doing some basic mods to it to learn about cars.

I really don't know much about cars at all, and I heard that replacing the stock air intake system is an easy job to do.
I bought one off ebay, with a K&N filter, and I was wondering if anyone had experience with replacing a 1994 corolla's intake?
It's not cold air, its a short one that resides in the engine bay.

Any help would be appreciated, I have a general idea of where to start, but any tips or things to look out for would be very useful! (i'm really really really new to cars, just learning the basics...)