Speedmaster 250 lbs/in Spring Rate 12" Coil Over Shock Assemblies Adjustable Pair PCE494.1004

The Speedmaster PCE494.1004 coil over shock assemblies deliver adjustable suspension tuning for performance-focused vehicles and custom builds. This pair features a 250 lbs/in spring rate and 12" length, allowing drivers to dial in ride height and spring preload for optimal handling characteristics and lowered stance. Ideal for drag racing, street performance, and suspension customization projects where adjustability and consistent damping are critical.

These coil over units combine spring and damper in a single integrated assembly, reducing installation complexity while providing the tuning flexibility that enthusiasts demand. The adjustable design lets you fine-tune spring preload to achieve your target ride height without changing springs, making them suitable for both street and competition use. Whether you're building a weekend racer or upgrading a daily driver's suspension, these units offer the performance foundation for serious suspension work.

Key Features & Benefits

• 250 lbs/in Spring Rate: Designed for performance applications requiring moderate-to-firm spring rates for handling and load control.
• 12" Assembly Length: Fits applications engineered for this shock and spring stack height.
• Adjustable Design: Allows tuning of spring preload and ride height to match your specific suspension geometry and driving needs.
• Pair Configuration: Two complete coil over shock assemblies included for left and right side installation.
• Integrated Spring & Damper: Combined assembly simplifies installation and maintains consistent damping characteristics throughout the suspension travel.

Specifications

Ideal Applications

• Drag racing and competition suspension setups
• Street performance and lowered stance builds
• Custom vehicle suspension projects
• Performance car upgrades requiring adjustable damping and spring rate