Will this bolt straight in, or do I need to modify anything?

This radiator mounts at factory points—no cutting, drilling, or bracket modification. Bolt it in place where the OEM unit was, reconnect your hoses, and you're done.

Do I need to flush the cooling system before installing this?

Yes. Drain the old coolant and flush the system with fresh coolant before you install. Old fluid can contaminate the new radiator and reduce its lifespan.

What hose connections does this have?

This radiator uses the same inlet and outlet sizes as the factory unit on your platform. Your existing hoses should connect without adapters.