The Eibach Pro-Spacer 5mm widens Mazda 3 track width by 5mm per side for improved handling. Crafted from high-strength aluminum, this pair ensures precise alignment for 3 sedans and hatchbacks. Ideal for street or spirited driving, it enhances cornering grip and stance. Bolt-on installation with corrosion-resistant coating requires proper torque. Lightweight design minimizes unsprung weight. Includes a limited lifetime manufacturer warranty.