Eibach Anti-Roll-Kit Rear 15mm Sway Bar Kit - 1989-1997 Miata

The Eibach Anti-Roll-Kit 5517.312 changes suspension roll stiffness for the listed applications. Its front/rear configuration and any available adjustment positions should be considered together with the vehicle’s springs, tires, and alignment. Application family: Mazda Miata.

Technical details

• Package contents: Rear Sway Bar Kit Only.
• Rear bar: solid construction; 3 Way-Adjustable.
• Bar diameter reference — 1990-1993 Mazda Miata NA: 15mm Rear.
• Manufacturer part number: 5517.312.

A sway bar resists differences in left-to-right suspension movement, helping control body roll in corners. Front and rear roll stiffness also influence handling balance; diameter alone does not describe the full stiffness change because construction and geometry matter.

Check end link condition, bushing fit, and articulation during installation. Set adjustable links without unwanted preload and verify clearance through suspension movement. Where bar adjustment is available, make incremental changes and assess the resulting balance.

Check your exact year, model, trim, and suspension configuration against the application information below before ordering.

Vehicle fitment