How much is it to lower my car?

I got a 2015 Honda Civic. Wondering if anybody knows how much it is to do that. I got 18" wheels on it if that matters on how low it can go.

Protip: The first thing you do before lowering a car is *never* going to be "install oversized wheels."

You would need to check with a shop, but here's my recommendation - don't. You will make your car ride worse and you may invalidate some portions of your warranty coverage. Also you will be spending money to make the car less valuable - nobody over the age of 25 would ever want to buy your lowered Civic if you wanted or needed to sell it at some point.