Will 2008 Honda Civic LX 16" steelies fit a 2008 Civic si?

^ This.

It would be a big help if anyone knows for a fact if they do or not. Thanks guys!

sure just use a big hammer

Make sure they are 5x114.3 and you are in the clear

I had 16" wheels from and RSX on my Si when I traded it in to Langan for the GLI. they were alloys not steelies it was a close fit with the caliper

People on the Honda forumz should know, I bet that’s a common winter wheel (or a common question if it doesn’t work).