H&R 51664-88 Race Lowering Springs for 2014-2019 Ford Focus ST 1.7in Drop

Vehicle Fitment

• 2014-2019 Ford Focus ST (Mk3/CEW, 2.0L Turbo I4, FWD)

Fitment Notes

• Designed exclusively for Ford Focus ST performance trim (ST only)
• Not compatible with base Ford Focus or non-ST models
• Lowering may vary slightly depending on engine load and options
• May require alignment adjustment after installation

Features

• Performance-tuned race spring design for aggressive handling response
• Lowers vehicle center of gravity for improved cornering stability
• Reduces body roll during high-speed cornering and braking
• Progressive spring rate design for balance of comfort and performance
• Shot-peened steel construction for increased fatigue resistance
• High-strength 54SiCr6 spring steel for durability under load
• Engineered for track-inspired street performance use
• Improves steering feedback and overall chassis responsiveness

Specifications

• Part Number: 51664-88
• Front Lowering: 1.7 inches
• Rear Lowering: 1.6 inches
• Vehicle Platform: Ford Focus Mk3 (CEW)
• Drivetrain: FWD
• Engine: 2.0L Turbocharged I4 (Focus ST)
• Spring Type: Fixed-rate lowering springs
• Material: High-tensile 54SiCr6 spring steel

Included Components

• 2x Front lowering springs
• 2x Rear lowering springs

Product Description

The H&R 51664-88 Race Spring Kit is designed to transform the handling dynamics of the 2014-2019 Ford Focus ST by lowering the vehicle's ride height and improving overall chassis response. With a 1.7-inch front and 1.6-inch rear drop, this setup significantly reduces the center of gravity, resulting in sharper steering input and reduced body roll during aggressive driving.

Built from high-strength 54SiCr6 spring steel, these springs are engineered for durability and consistent performance under demanding conditions. The shot-peened manufacturing process increases fatigue resistance, ensuring long service life even under spirited or track use. The progressive tuning provides a balance between daily drivability and performance handling characteristics.

This kit is specifically developed for the Focus ST platform, ensuring proper fitment and optimized suspension geometry without compromising OEM reliability. It is ideal for enthusiasts seeking a lower stance, improved cornering stability, and a more connected driving experience.