Hyperco 18SNP11-275 Rear Coil Spring 5.5in ID 11in Tall 275 lb/in — Single Pigtail

SKU: BJRF_18SNP11-275
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hyperco

Hyperco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hyperco lineup with fast shipping and expert fitment support — order with confidence.

Ultimate Control with the Hyperco 275 lb/in Rear Coil Spring

Push the boundaries of your vehicle's performance with the Hyperco 18SNP11-275 Rear Coil Spring. This conventional coil spring is engineered for the most demanding applications, delivering an aggressive 275 lb/in spring rate that provides unparalleled control, minimizes body roll, and ensures maximum tire grip. Perfect for dedicated track cars and highly tuned street machines, this Hyperco spring is a cornerstone for a truly optimized suspension system.

Race-Proven Durability and Precision

Forged from aerospace-grade steel, the 18SNP11-275 coil spring is built for extreme durability and consistent performance under the most rigorous conditions. Its resilient black paint finish not only provides superior corrosion resistance but also contributes to a professional, high-performance aesthetic. The single pigtail design offers broad compatibility, making it an excellent choice for custom suspension builds and serious performance upgrades.

  • Spring Rate: 275 lb/in for maximum performance
  • Inner Diameter: 5.5 inches
  • Length: 11 inches
  • Material: Aerospace-grade Steel
  • Design: Conventional, Single Pigtail
  • Position: Rear
  • Finish: Durable Black Powder Coat

The Hyperco Difference for Competitive Edge

Hyperco is the brand of choice for champions, known for its commitment to precision and performance. The 18SNP11-275 rear coil spring will provide a dramatic improvement in vehicle stability, allowing for faster cornering speeds and more confident handling. This is the ultimate upgrade for drivers seeking to extract every ounce of performance from their chassis. Find your competitive advantage at GGCRACING.COM.

Product Details

Product Description
Part Numbers
Sizing & Fit

About Hyperco

Hyperco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hyperco lineup with fast shipping and expert fitment support — order with confidence.

Ultimate Control with the Hyperco 275 lb/in Rear Coil Spring

Push the boundaries of your vehicle's performance with the Hyperco 18SNP11-275 Rear Coil Spring. This conventional coil spring is engineered for the most demanding applications, delivering an aggressive 275 lb/in spring rate that provides unparalleled control, minimizes body roll, and ensures maximum tire grip. Perfect for dedicated track cars and highly tuned street machines, this Hyperco spring is a cornerstone for a truly optimized suspension system.

Race-Proven Durability and Precision

Forged from aerospace-grade steel, the 18SNP11-275 coil spring is built for extreme durability and consistent performance under the most rigorous conditions. Its resilient black paint finish not only provides superior corrosion resistance but also contributes to a professional, high-performance aesthetic. The single pigtail design offers broad compatibility, making it an excellent choice for custom suspension builds and serious performance upgrades.

  • Spring Rate: 275 lb/in for maximum performance
  • Inner Diameter: 5.5 inches
  • Length: 11 inches
  • Material: Aerospace-grade Steel
  • Design: Conventional, Single Pigtail
  • Position: Rear
  • Finish: Durable Black Powder Coat

The Hyperco Difference for Competitive Edge

Hyperco is the brand of choice for champions, known for its commitment to precision and performance. The 18SNP11-275 rear coil spring will provide a dramatic improvement in vehicle stability, allowing for faster cornering speeds and more confident handling. This is the ultimate upgrade for drivers seeking to extract every ounce of performance from their chassis. Find your competitive advantage at GGCRACING.COM.

Product Details

Product Description

About Hyperco

Hyperco engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Hyperco lineup with fast shipping and expert fitment support — order with confidence.

Ultimate Control with the Hyperco 275 lb/in Rear Coil Spring

Push the boundaries of your vehicle's performance with the Hyperco 18SNP11-275 Rear Coil Spring. This conventional coil spring is engineered for the most demanding applications, delivering an aggressive 275 lb/in spring rate that provides unparalleled control, minimizes body roll, and ensures maximum tire grip. Perfect for dedicated track cars and highly tuned street machines, this Hyperco spring is a cornerstone for a truly optimized suspension system.

Race-Proven Durability and Precision

Forged from aerospace-grade steel, the 18SNP11-275 coil spring is built for extreme durability and consistent performance under the most rigorous conditions. Its resilient black paint finish not only provides superior corrosion resistance but also contributes to a professional, high-performance aesthetic. The single pigtail design offers broad compatibility, making it an excellent choice for custom suspension builds and serious performance upgrades.

  • Spring Rate: 275 lb/in for maximum performance
  • Inner Diameter: 5.5 inches
  • Length: 11 inches
  • Material: Aerospace-grade Steel
  • Design: Conventional, Single Pigtail
  • Position: Rear
  • Finish: Durable Black Powder Coat

The Hyperco Difference for Competitive Edge

Hyperco is the brand of choice for champions, known for its commitment to precision and performance. The 18SNP11-275 rear coil spring will provide a dramatic improvement in vehicle stability, allowing for faster cornering speeds and more confident handling. This is the ultimate upgrade for drivers seeking to extract every ounce of performance from their chassis. Find your competitive advantage at GGCRACING.COM.

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