How much tire clearance do these flares actually give me?

The 30mm extension is designed to accommodate wider tire widths without rubbing during normal driving or suspension articulation. Measure your current tire sidewall, account for any suspension modifications you've made, and verify fitment before final installation — every setup is slightly different.

Will these work with my current wheel offset and size?

These are designed as a general fitment solution for the platform. Before committing, compare your wheel specs (diameter, width, offset) against the body line — the 30mm extension should accommodate most stock and modest aftermarket wheel sizes. If you're running significantly wider or lower offset wheels, test fit or consult your wheel manufacturer's backspacing data.

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

Verify your vehicle's existing mounting point locations on the rear quarter panel before starting. Factory holes may already be in place — if they're not, you'll need to determine hole spacing and drilling depth based on your specific setup. Reference the OEM body structure to avoid fuel lines or wiring.