Will this diffuser scrape on steep inclines or driveways?

The Redline diffuser extends below the stock bumper line. Check your typical approach angles and driveway geometry before installation. If you frequently navigate steep ramps or unpaved terrain, measure the clearance against your vehicle's current setup to confirm fitment suits your driving environment.

Can I install this without removing the rear bumper?

Installation depends on your vehicle's bumper design and how the diffuser mounts to the factory attachment points. Most rear diffusers can be secured with the bumper in place, but access to mounting hardware varies. Review your bumper structure and the attachment locations before starting work.

What prep is required before painting?

Sand the surface with appropriate abrasive grit to promote paint adhesion and remove any handling marks. Clean thoroughly to remove dust and debris. Follow your paint manufacturer's surface preparation guidelines for the topcoat system you've chosen.