The Eibach Pro-Spacer 10mm widens Mazdaspeed3 track width by 10mm per side for improved handling. Crafted from high-strength aluminum, this pair ensures precise alignment for Mazdaspeed3 hatchbacks. Ideal for track or street, it enhances cornering grip and stance. Bolt-on installation with corrosion-resistant coating requires proper torque. Lightweight design boosts performance. Includes a limited lifetime manufacturer warranty.