H&R R25100100

2024–2025 Subaru Forester / Subaru Outback 2.5L

Part #: R25100100

Overview

The H&R 2.5" ID Linear Race Spring Length 10" Rate 900 lbs/inch is a high-performance suspension component designed for enthusiasts seeking superior handling and ride quality. Crafted with precision in Germany, these race springs are engineered to deliver exceptional stability and responsiveness, making them ideal for spirited driving, track days, or any application where maximum performance is desired. Whether you're upgrading your Subaru Forester or Outback, these springs help support aggressive cornering and improved chassis control.

Constructed from advanced materials and manufactured using cutting-edge technology, these springs are designed to withstand the rigors of high-performance driving while maintaining optimal weight and travel characteristics. They are perfect for drivers who demand durability, precision, and enhanced driving dynamics from their vehicle's suspension system.

Key Features

H&R's R25100100 race springs incorporate several innovative features that set them apart from standard suspension components:

• Made from lightweight (hf) 54SiCr6 spring steel, which combines high tensile strength with reduced weight, resulting in a 15% lighter spring compared to competitors at the same rate.
• Manufactured in Germany using advanced materials and precision technology to ensure consistent quality and performance.
• Designed with a 2.50" inner diameter, suitable for high-performance coilover applications and custom suspension setups.
• Spring rates of 900 lbs/inch provide a firm, responsive ride that enhances handling without sacrificing too much comfort.
• Extended travel capacity, offering approximately 10% more movement than comparable springs, which helps improve ride quality and suspension compliance under load.
• Available in a range of lengths from 6" to 16", allowing for tailored suspension setups to match specific vehicle modifications or driving preferences.
• Engineered for racing, track use, or aggressive street driving, these springs help support increased load and dynamic forces during spirited driving sessions.

Construction & Design

The H&R race springs are meticulously crafted from special lightweight (hf) 54SiCr6 spring steel, a material renowned for its strength-to-weight ratio and durability. The springs feature a precise linear rate of 900 lbs/inch, ensuring predictable handling characteristics and consistent performance across various driving conditions. Their design incorporates advanced manufacturing techniques, including CNC winding and heat treatment, to achieve tight tolerances and optimal spring geometry.

The springs' compact 10" length and 2.50" inner diameter make them suitable for custom coilover setups, providing flexibility for suspension tuning. The lightweight construction reduces unsprung mass, which can lead to improved acceleration, braking, and overall vehicle responsiveness. The high tensile strength wire alloy allows for thinner wire thickness without sacrificing strength, contributing to the overall weight savings and increased travel capacity.

Installation & Fitment

The H&R R25100100 springs are designed as direct replacements for your vehicle's factory springs, offering a bolt-on upgrade for compatible Subaru models. Installation typically involves removing the stock springs and replacing them with these race springs, often requiring coilover-compatible shock absorbers. Due to their specific dimensions and high-performance design, professional installation is recommended to ensure proper fitment and safety. No cutting or drilling is required, but suspension alignment should be checked after installation to optimize handling and tire wear.

• Compatible with aftermarket coilover systems or custom suspension setups.
• Designed for use in racing, track days, or spirited street driving.
• Requires proper suspension tuning for optimal performance.

What's Included

• Pair of high-performance race springs (front and rear as applicable)
• Installation hardware and instructions (if provided by manufacturer)

Ideal For

• Performance enthusiasts seeking aggressive handling improvements
• Track day and racing applications
• Owners looking to reduce body roll and improve chassis response
• Custom suspension setups requiring lightweight, high-rate springs