H&R 51643 Sport Lowering Springs for 2004-2009 Mazda Mazda3 BK

Vehicle Fitment

• 2004-2009 Mazda Mazda3 (BK; i/S/Speed models; FWD)

Features

• H&R Sport progressive-rate lowering springs engineered for improved handling
• Lowers center of gravity for enhanced stability and responsiveness
• Reduced body roll and improved cornering balance
• Enhances visual stance by reducing fender gap
• Precision wound from high-strength 54SiCr6 spring steel
• Shot-peened surface for durability and long service life
• Balanced ride quality for daily driving and spirited use
• Compatible with OEM shocks or many performance dampers

Specifications

• Part Number: 51643
• Front Lowering Approx.: ~1.3 inches
• Rear Lowering Approx.: ~1.2 inches
• Material: 54SiCr6 high-tensile spring steel
• Fitment: 2004-2009 Mazda Mazda3 BK (FWD)
• Quantity: Set of 4 springs (front and rear)

Included Components

• 2x Front lowering springs
• 2x Rear lowering springs
• Manufacturer documentation

Product Description

H&R 51643 Sport Lowering Springs are a premium suspension upgrade tailored for the 2004-2009 Mazda Mazda3 (BK platform). These Sport springs lower the vehicle approximately 1.3 inches at the front and 1.2 inches at the rear, helping reduce body roll, improve handling responsiveness, and deliver a more aggressive stance with reduced fender gap. The progressive rate design provides a balance of improved performance while maintaining comfortable ride quality for daily driving.

Crafted from high-strength 54SiCr6 spring steel and precision-engineered in Germany, H&R Sport Springs help refine both the look and feel of your Mazda3 without the need for a full coilover setup. Compatible with factory shocks or many aftermarket dampers, this kit is an excellent choice for Mazda owners seeking enhanced handling dynamics and sharper road feel with a refined ride quality.