Bilstein 24-249638 B8 Performance Plus Rear Shock for 16-24 Mazda MX-5

Vehicle Fitment

• 2016-2024 Mazda MX-5 Miata (Rear, Various Trims/Engines, AWD/Standard Suspension)
• 2017-2020 Fiat 124 Spider (Rear, Classica/Abarth/Lusso Trims)

Features

• B8 Performance Plus monotube gas-pressurized rear shock for sportier handling
• Designed to pair with aftermarket lowering springs for improved dynamics
• Application-specific calibrated valving enhances responsiveness and control
• Direct replacement - installs into OE rear shock mounts without modification
• Improved cornering stability and traction over stock shocks
• Yellow corrosion-resistant finish for long service life
• Spring seat included for proper integration with suspension setup
• Backed by Bilstein limited lifetime warranty

Specifications

• Part Number: 24-249638
• Series: B8 Performance Plus
• Position: Rear (Driver or Passenger Side)
• Damping Type: Gas-pressurized, monotube
• Lower Mount Type: Clevis
• Upper Mount Type: Stem
• Collapsed Length: 14.88 in (378 mm)
• Extended Length: 21.27 in (540.5 mm)
• Boot Included: No
• Spring Seat Included: Yes
• Sold Individually - 1 shock per unit

Included Components

• 1x Bilstein B8 Performance Plus Rear Shock Absorber (24-249638)

Product Description

The Bilstein 24-249638 B8 Performance Plus Rear Shock is a high-quality performance-tuned replacement designed for select Mazda and Fiat sport cars. Built with gas-pressurized monotube construction and application-specific valving, this rear shock delivers sharper handling, improved stability, and better road feel compared to standard factory dampers. It is engineered to work especially well with lowering springs or sport suspension upgrades, giving a more responsive and dynamic driving experience without compromising everyday comfort.

Fitment is confirmed for the rear suspension of 2016-2024 Mazda MX-5 Miata models and 2017-2020 Fiat 124 Spider vehicles across multiple trims and engine options. This shock installs easily into factory mounting points and integrates with existing suspension components, making it a direct-fit performance upgrade. Coverage through 2024 (Mazda MX-5 Miata) and 2020 (Fiat 124 Spider) is verified; fitment beyond these years or on models with electronic adaptive suspension is unconfirmed at the time of listing.