Progress Technology Sport Springs

2005–2023 Chrysler 300 / Dodge Magnum / Dodge Charger / Dodge Challenger

40.0635

Overview:

Progress Technology Sport Springs are engineered to enhance the appearance and handling of your Chrysler 300, Dodge Magnum, Charger, or Challenger. Designed for enthusiasts seeking a sportier stance and improved driving dynamics, these lowering springs reduce the vehicle’s center of gravity, resulting in sharper cornering and reduced body roll. The sport-tuned spring rates provide a balanced ride quality that is both engaging and comfortable for daily driving. Ideal for owners who want to upgrade their suspension without replacing OEM shocks, these springs deliver noticeable performance gains while maintaining reliability.

Key Features:

Progress Technology Sport Springs combine advanced engineering with high-quality materials to deliver superior performance and durability. Key features include:

• Front lowering height of approximately 1.6 inches and rear lowering height of 1.4 inches for an aggressive, lowered stance
• Sport-tuned spring rates: 310 lb/in front and 725 lb/in rear, optimized for improved handling and reduced body roll
• Designed to work seamlessly with OEM shocks, with enhanced benefits when paired with high-performance dampers such as Bilstein, Koni, or Tokico
• Manufactured using certified high-tensile SAE spring wire for strength and longevity
• Cold-wound on CNC coiling machines for precision and consistency
• Stress-relieved, pre-set, and shot-peened to maximize durability and fatigue resistance
• Finished with a durable powder coat for corrosion resistance and a sleek appearance
• Extensive fitment coverage across multiple Chrysler and Dodge models from 2005 through 2023

Construction & Design:

Each Progress Technology Sport Spring is crafted from premium high-tensile SAE spring wire, ensuring exceptional strength and resilience under demanding conditions. The springs are cold-wound on state-of-the-art CNC coiling machines, guaranteeing precise dimensions and uniform performance. Following coiling, the springs undergo a stress-relief process and are pre-set to maintain consistent ride height and handling characteristics. Shot-peening further enhances fatigue life by reducing surface imperfections. Finally, a robust powder-coated finish protects against corrosion and wear, ensuring long-lasting durability and an attractive look under the vehicle.

Installation & Fitment:

Progress Technology Sport Springs are designed for direct bolt-on installation with the factory suspension components on compatible Chrysler 300 (2005–2010), Dodge Magnum (2005–2008), Dodge Charger (2006–2010), and Dodge Challenger (2009–2023) models. No modifications to the chassis or suspension are required, making installation straightforward for professional shops or experienced enthusiasts. While these springs work well with OEM shocks, pairing them with upgraded dampers such as Bilstein, Koni, or Tokico will maximize handling improvements and ride quality.

What's Included:

• Set of four Progress Technology Sport Lowering Springs (front and rear)
• Installation instructions

Ideal For:

These sport springs are perfect for drivers who want to improve the handling and aesthetics of their Chrysler or Dodge muscle cars without sacrificing ride comfort. Whether you’re upgrading a daily driver or preparing a vehicle for spirited weekend driving, Progress Technology springs provide a balanced, sporty feel with a lowered stance that enhances both performance and style.

Progress Technology is a performance suspension brand known for chassis tuning parts like sway bars, end links, sport springs, and coilover systems that improve handling and stability. If you’re looking to reduce roll, refine balance, and make a street car feel more responsive for spirited driving or track days, Progress delivers proven bolt-on solutions.