How much additional tire clearance do these flares provide?

The RVS profile extends the fender line outward, giving you room to fit slightly wider or lower-offset wheel setups. Measure your current tire sidewall clearance at full turn and compare against your target wheel/tire combo before installation — the flares themselves don't change suspension geometry, only the body line.

Do I need to drill or modify the body to install these?

These flares are designed to work with existing body attachment points. Check your vehicle's OEM fender bolt and fastener locations before beginning installation to confirm alignment with the mounting pads on the flares.

What wheel and tire sizes work best with the RVS flare design?

The RVS profile accommodates a range of offsets and widths. Verify your wheel offset and tire sidewall height against the flare's outward extension at the widest point (especially at the rear quarter panel) to ensure your chosen setup clears without binding.