Do I need to drain the entire cooling system before installation?

Yes. Disconnect the hoses at both ends, remove the mounting brackets, and slide out the old radiator. Have a drain pan ready — expect coolant spillage. Refer to your owner's manual for the system capacity so you know how much fresh coolant to add back in.

Will this fit if I have aftermarket fans or a custom shroud?

This radiator uses factory mounting points and core dimensions. If your fans or shroud were installed around the OEM radiator, they should clear this replacement. Test-fit before final installation if you've heavily modified the engine bay.

Does this come with new hoses or clamps?

Radiator assembly only — hoses and clamps are not included. Inspect your existing hoses for cracks or hardening while the system is open; most builders swap them at the same time to avoid future leaks.