Speaker size 98 Infiniti i30

The 1998 Infiniti I30 typically comes equipped with 6.5-inch speakers in the front doors and 6.5-inch or 6x9-inch speakers in the rear, depending on the specific trim and audio system options. For optimal sound quality, it's recommended to choose aftermarket speakers that fit these dimensions while also considering the car's factory mounting and wiring. Always check the vehicle's manual or consult with a professional for compatibility before purchasing replacement speakers.