Do these covers need any hardware to install?

Hardware is not included — you'll need to confirm your mounting method before installation. Test-fit first to determine whether you're using existing factory fasteners, adhesive, or separate hardware from your local supplier.

Should I paint or prep these before mounting?

These ship unpainted. If you want color-match finish, sand the surface and prime before painting with your choice of automotive paint. If you prefer raw, you can install as-is and apply protective coating later.

Will these fit if I've already modified my door handles?

These are engineered for factory-spec handles and mounting points. If your handles have been reshaped, reinforced, or repositioned, test-fit before committing to installation.