How many flaps come in a set?

Four, two front and two rear, so the whole car is covered in one order. The front pair and rear pair are shaped differently to match the arch profiles at each end, so they are not interchangeable.

Do I need to remove the wheels?

No. All four flaps mount from outside the arch using the existing points behind the liner, so the wheels stay on and no jack is needed. Allow about 20 minutes for the full set.

Do I need to drill into the bodywork?

No. The flaps use factory mounting points and the supplied hardware. Nothing is drilled into painted bodywork, and removing them later leaves no visible mark.

Will they crack in cold weather?

The ABS is rated to -40C, so it stays flexible through hard frost rather than going brittle. That is the main failure point on cheaper flaps.

Are these the same as splash guards?

Yes. Mud flaps, splash guards and mud guards all describe the same part, a moulded shield behind the wheel that stops road spray reaching the bodywork.

Will they fit over aftermarket wheels or a lowered car?

The flaps mount to the arch, not the wheel, so wheel size and offset do not affect fitment. On a significantly lowered car the reduced clearance means the flap sits closer to the road.

Are these genuine GM parts?

No. These are aftermarket mud flaps. Caddyaccessories is an independent retailer and is not affiliated with, endorsed by, or sponsored by General Motors or Cadillac.