Do these fenders require drilling or modification to my existing panel?

These are over fenders designed as a bolt-on addition to your existing body. Verify your vehicle's OEM fender hole locations and mounting points before installation to ensure proper alignment. Your service manual will confirm fastener locations.

What should I use to prep the FRP before painting?

Sand the surface with appropriate grit to create a clean profile for paint adhesion. Wipe down all dust and debris, then apply your chosen primer and topcoat system. FRP accepts standard automotive paint finishes.

Will these fit correctly if my original fender has been repaired or replaced?

Fitment depends on your OEM panel being in stock condition or properly aligned. If your original fender has been heavily modified, repaired, or replaced with an aftermarket panel, confirm mounting point locations match before final assembly.