Do these mount directly to the factory fender, or do I need brackets?

Over-fenders typically bolt over the existing bodywork using factory hole locations or new mounting points drilled through both the original fender and the new panel. Reference your vehicle's service manual or have an installer verify the exact mounting strategy before drilling.

What surface prep is needed before painting?

Sand the surface thoroughly with appropriate grit, then apply a sealer or primer coat before your topcoat. This ensures adhesion and finish quality. Your paint supplier can recommend the primer type that works best with FRP.

Will these affect my tire clearance or wheel fitment?

Over-fenders extend your vehicle's width slightly and sit over the existing bodyline. Verify your wheel offset and tire size will clear the new fender profile before installation. If you run wider wheels or aggressive offsets, physically mock-up the fitment or consult with your installer.