Old thread but new videos. You don't have to remove the whole bumper to replace the horns (if you put them in the stock location):

And while the Hella Supertones are loud, the pitch is too high. I replaced them with the Hella Twin Tone Trumpets. Nearly as loud but a lower tone:

I have these on all my cars.

 

I know this is an old thread but im almost ready to put fog's in my sedan that doesn't have them already and was just wondering... is there a spot to bolt them in already or am I going to have to drill and fit a spot? I know the grill part on the bumper comes out for the new grill and light but im just unsure if there is already a spot to attach the fogs to the car...is there anyone that can help me?