Do these fenders require modification to my existing body panels?

No. Over-fenders bolt directly to factory mounting points without cutting or sectioning. Your OEM fenders stay intact, and these mount over top.

What prep is needed before I paint these?

Sand and prep the surface with standard bodywork procedures before applying your chosen primer and paint. They ship in raw FRP condition — the surface is ready to accept finishing products.

Will these fenders clear my wheels and suspension setup?

The D1 profile is designed for wide stance fitment, but tire and suspension clearance depends on your specific wheel offset, tire size, and suspension height. Verify wheel fitment against the fender's actual flare before final installation.