How much tire clearance do these add?

The 2.7" extension provides modest additional clearance over stock fenders. Verify your specific wheel offset and tire diameter before installation—wider offsets and taller sidewalls require more room. Measure your current gap and compare against the 2.7" panel depth to confirm fit for your setup.

Do I need to drill to mount these, or do they use existing holes?

These are universal panels, so mounting strategy depends on your vehicle's fender structure. Some cars have factory holes; others require new fastener points. Inspect your fender edge and determine whether existing mounting locations align before drilling. If drilling is needed, use a pilot bit and work carefully to avoid panel damage.

What wheel offset and tire size range will these accommodate?

Because these are universal flares, fitment varies by vehicle. Reference your wheel offset (ET rating) and tire sidewall height, then physically test clearance between the flare edge and your tire at full suspension compression. A 2.7" extension typically suits conservative offsets (+15 to +35) paired with standard or slightly wider tire profiles—but your specific setup should always be verified before purchase.