H&R 51659-2 Sport Lowering Springs for 1999-2004 Ford Mustang Cobra Convertible

Vehicle Fitment

• 1999-2004 Ford Mustang Cobra Convertible (V8; IRS)

Features

• H&R Sport progressive-rate lowering springs engineered for enhanced handling
• Lowers center of gravity for improved stability and cornering response
• Reduces body roll compared with stock suspension
• More aggressive stance with reduced fender gap
• Precision wound from high-strength 54SiCr6 spring steel
• Shot-peened and stress-relieved for durability and performance
• Balanced ride quality suitable for street use
• Compatible with factory and many aftermarket dampers

Specifications

• Part Number: 51659-2
• Front Lowering Approx.: ~1.6 inches
• Rear Lowering Approx.: ~1.5 inches
• Material: 54SiCr6 high-tensile spring steel
• Fitment: Rear-wheel-drive Mustang Cobra Convertible with independent rear suspension (IRS)
• Quantity: Set of 4 springs (front and rear)

Included Components

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

Product Description

H&R 51659-2 Sport Lowering Springs are a performance-oriented suspension upgrade designed specifically for 1999-2004 Ford Mustang Cobra Convertibles equipped with independent rear suspension (IRS). These springs lower the vehicle by approximately 1.6 inches at the front and about 1.5 inches at the rear, reducing the center of gravity and helping improve handling stability and cornering response while creating a more aggressive visual stance. The progressive spring rate design provides a balance of street-ready performance and daily-drive comfort.

Crafted in Germany from high-strength 54SiCr6 spring steel with shot-peened, stress-relieved construction, H&R Sport Springs are engineered for durability and consistent performance. This kit includes a complete set of four springs and is compatible with many factory shock absorbers or aftermarket dampers, making it an excellent choice for Mustang Cobra Convertible owners seeking improved road feel, reduced fender gap, and sharper handling without resorting to full coilover systems.