H&R 51655-77 Super Sport Lowering Springs for 2005-2009 Ford Mustang GT/V6/V8

Vehicle Fitment

• 2005-2009 Ford Mustang (Base, GT, Shelby GT, Shelby GT-H; V6/V8; RWD)

Features

• H&R Super Sport progressive-rate lowering springs for enhanced performance
• Lowers center of gravity for improved cornering and handling response
• Aggressive stance with reduced fender gap and sportier profile
• More lowering than standard Sport springs for seasoned enthusiasts
• Precision wound from high-strength 54SiCr6 spring steel
• Shot-peened and stress-relieved for durability and long service life
• Balance of ride comfort and performance handling
• Compatible with factory or many performance shocks/struts

Specifications

• Part Number: 51655-77
• Front Lowering Approx.: ~1.7 inches
• Rear Lowering Approx.: ~1.9 inches
• Material: 54SiCr6 high-tensile spring steel
• Fitment: Rear-wheel drive Ford Mustang models listed above
• Quantity: Set of 4 lowering springs (front and rear)

Included Components

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

Product Description

H&R 51655-77 Super Sport Lowering Springs are engineered for 2005-2009 Ford Mustang models equipped with V6 or V8 engines and rear-wheel drive. These progressive-rate springs offer more aggressive lowering than standard Sport springs, dropping approximately 1.7 inches in the front and about 1.9 inches in the rear to reduce the center of gravity and improve handling response and stability. The result is sharper cornering and a more commanding stance without excessively compromising everyday ride comfort.

Constructed from high-strength 54SiCr6 spring steel with shot-peened, stress-relieved processing, H&R Super Sport Springs deliver a blend of performance and durability. This kit includes four springs for front and rear suspension and is compatible with many OEM shocks or performance dampers. These springs are ideal for Mustang enthusiasts seeking enhanced road feel, reduced body roll, and a more aggressive appearance. Performance shocks or struts are recommended to fully match the increased spring rates and maximize handling benefits.