Do these vents require the entire CCG Wide Body kit to look right?

Yes. These rear fender vents are designed as part of the complete CCG Wide Body system. Installing them alone will create visual gaps and proportion issues. Plan to acquire the full kit for proper fitment and appearance across all four body sides.

What prep is needed before I paint these?

Sand and prep the surface using standard automotive practice for FRP. The raw FRP condition means the vents have been surfaced but are not sealed. Wash with soap and water, allow to dry fully, then sand lightly before applying your primer and top coat of choice.

Will I need fasteners or mounting brackets?

Reference your vehicle's OEM rear quarter panel hole locations and structure before ordering. Fastener type and installation hardware depend on how you choose to mount and secure the vents to your specific setup. Plan accordingly with your preferred fastening method.