Do I need new hoses or coolant when I install this?

The radiator itself doesn't require new hoses — they reuse existing connections. Flush your cooling system and top off with fresh coolant appropriate for your Mazda's specifications when you install it.

Can I install this myself, or do I need a shop?

This is a straightforward bolt-in swap if you're comfortable draining coolant and removing a few fasteners. Standard hand tools and a drain pan are all you need. If you're not confident working with pressurized cooling systems, a shop can handle it in under an hour.

What's your return policy if this doesn't fit?

Contact ModSupply customer service directly — they'll walk you through fitment verification before installation and handle any issues that arise. Keep your original radiator until you confirm the new one is seated properly.