Will this bolt up to my factory mounting points without modification?

Yes. This tank mounts at the OEM locations using factory attachment points — no drilling or bracket fabrication needed. Check hose routing before final tightening to ensure no kinks.

Does the cap seal properly, or do I need to buy one separately?

The cap is included and ready to use. If your original cap had a specific pressure rating, verify it matches your vehicle's cooling system spec by checking your service manual.

Can I install this myself with basic hand tools?

Designed for DIY installation — you'll need basic wrenches, a drain pan for old coolant, and a hose clamp or two if your connections need refreshing. Drain the system first to avoid spills.