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Vivid Racing Gear 
Performance Suspension Springs
With decades of experience under our belts, our engineering team specializes in designing and tuning performance suspension systems for a variety of racing competitors, including CART/Indy Cars, IMSA, SCCA, NASA, and SCORE. Our spring designs are a testament to our commitment to blending style, handling, and ride comfort seamlessly.
Key Features
- V6 models may experience a slightly lower drop.
- Springs come in a sleek powder-coated Silver finish.
- Front drop: 1.6" — Rear drop: 1.4"
- Front spring rate: 310 lbs/in — Rear spring rate: 725 lbs/in
- Enjoy peace of mind with our limited lifetime warranty!
Compatibility
- Dodge Chrysler 300c (2004-2010)
- Dodge Challenger (2009-2021)
Superior Construction
Our springs are crafted with increased spring rates for enhanced handling performance and progressively wound for an exceptional ride quality. While they are designed to work well with OEM shocks, pairing them with high-performance shocks, like those from Bilstein, will maximize their potential.
We use only certified high-tensile SAE spring wire materials, ensuring durability. Each spring is cold-wound on advanced CNC coiling machines, followed by stress relief, pre-setting, and shot peening to guarantee they stand the test of time.
Other Part Numbers:
Progress Technology #prg40.0635
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
Progress Tech is a company that was established in 1995 and started as a distributor of suspension components. With years of experience developing their products, they have become a premier brand in the automotive tuning market and have satisfied thousands of customers everywhere.
Leading Suspension BrandThe company’s slogan is "Advancing the Art." It has been their slogan ever since the company started, which guided them in their pursuit in becoming the leaders in today's highly competitive suspension aftermarket.
In-House ManufacturingAll their products are manufactured in-house, which allows them to maintain their products' consistency and high standards.
They design, develop, prototype, and test everything in their facility using a series of extensive procedures which enables the company to create products that would have both form and function.
Quality Products From The USAThe company is proud in offering quality-built products made entirely in the USA. Their facility is located in Anaheim, California, and houses some of the most sophisticated manufacturing tools and equipment available in the market today.
Brand Of ChampionsTheir suspension products are being used by various champion racing teams from different racing disciplines such as the SCCA, IMSA, NASA, SCTA, Honda Challenge, and World Challenge.
Toyota Motorsports even use their products for their Scion TC Pace Cars and Celebrity Challenge vehicles.
Purchase Progress Tech Products At Vivid RacingIf you are in the market for high-quality suspension components, then look no further as Progress Tech has got you covered. They offer a variety of suspension components that fit most vehicles made today. To know more about Progress Tech and what they can offer, visit Vivid Racing and check out their list of parts that fit your specific vehicle.
| Sale price | None |
| Wholesale price | $239.30 |
| Shipping |
Weight: 32.00 Length: 24 Width: 14 Height: 7 |
| Product Added At | Friday 21 May, 2021 |
| Product Modified At | Friday 11 July, 2025 |
| Imported By | ETLOverride |
| Last Edited By | Turn_API |
| View In Admin |
| Carb Approved | - |
|---|---|
| Carb Number | - |
| Epa Status | N/A |
| Prop65 | Yes |
| Carb Required | - |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Turn 14 | $202.80 | $312.00 | ? | ? | ? | 2025-07-11 10:43:15 |
