How much tire clearance do these flares add?

The 50mm width extension per side accommodates larger wheel and tire packages that would normally rub the factory fender. Measure your current setup and desired tire diameter, then verify fitment against the 50mm allowance on each quarter panel to confirm your upgrade path.

Do these flares require drilling or do they bolt on?

These flares are designed to bolt directly to existing factory mounting points on the rear quarter panels. No cutting or extensive drilling is required, but you'll want to verify your vehicle's OEM bolt hole locations before assembly to ensure clean alignment.

What wheel offset and size ranges work with these?

The 50mm extension accommodates a wide range of modern wheel and tire combinations. Reference your desired wheel offset against the extra width these flares provide, and confirm tire sidewall clearance with a dry-fit mock-up before final installation.