ISR’s Pro Series coilovers cover the whole early Miata run — one kit for 1989-2005 NA and NB cars. They’re monotube dampers with 32-way adjustable damping and full ride-height adjustment, on 8K front / 6K rear springs with pillowball front upper mounts.

That’s a sensible street/track spec for an NA or NB: enough spring for track days without the rates that make a light Miata miserable on the street. Set your height, dial the damping to the tires you’re running, and get an alignment — that’s where this kit earns its money.

• Fitment: 1989-2005 Mazda Miata MX-5 (NA and NB)
• Monotube dampers, 32-way adjustable damping
• Spring rates: 8K front / 6K rear
• Front pillowball upper mounts; full ride-height adjustability