Will this fit into my factory housing or do I need a new bracket?

This is designed as a direct replacement into the existing OEM lamp pocket — no bracket swap needed. Just pull the old bulb and insert the LED unit into the same socket.

Do I need a relay or decoder to prevent error codes?

Most vehicles with this lamp don't throw fault codes on the swap. If your car runs CAN-bus monitoring on low-current lighting circuits, a small load resistor might be needed — test after installation before driving.

What's the warranty if this fails after a few months?

Return window and coverage terms are handled through ModSupply's standard policy — check your order confirmation or contact support with your receipt for specifics on this item.