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Swift Springs 5.5" OD Conventional Springs 9.5" Length Front 400 lbs/inch Universal Fit
$128.35

If you’re into racing, you probably know that the U.S. is home to a ton of passionate racers. We've been around the block a few times, testing our gear on some of the toughest tracks in Europe and Asia, and now we’re bringing that experience back home. Swift has crafted these race springs specifically for the American racing scene, whether you’re tearing it up on oval tracks, launching off the line in drag racing, or hitting the trails in off-road adventures.

We really took the time to understand what American racers need. Our standard measurement springs are built on feedback from top-notch racers who know their stuff. Unlike the metric coilover springs, these have a unique design that sets them apart. Many folks swap springs without giving much thought to the ride quality, but with these, you’re looking at some serious upgrades. Imagine a spring that not only improves traction but also gives you smoother weight transfer, a better ride feel, and keeps your tire temps in check. That’s what we aimed for, and our engineers have nailed it.

These springs are made from H5S.TW. material, which is a step up from the usual silicone chrome steel. What does that mean for you? Well, it allows us to create a more responsive spring with fewer coils. This translates to reduced unsprung weight and increased stroke, which is a win-win for performance.

Here’s the lowdown on the specs:

  • Spring Rate: 400 lbs/inch
  • Usable Stroke: 6 inch
  • Max Stroke: 6.5 inch
  • Max Load: 2588.7 lbs

And the fitment? These springs are universal, so they can work with a variety of setups. If you’re looking to improve your ride and take your racing to the next level, these 950-550-400 Swift Springs with a 5.5” OD and 9.5” length are worth considering. Trust me, they’ll change the way you feel about your car on the track.

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Why was Swift Springs Formed?

Swift Springs was founded in 1997 in Tokyo, Japan as a motorsports division of Tokyo Hatsujo Manufacturing Co, Ltd., which has been leading the spring industry since 1924. Swift Springs was established to demonstrate their superior engineering by developing the next generation of sport suspension coilover springs. The scope of the project was to surpass the best of any other brand or design in the market by making the springs ultra-durable and lightweight, while still being affordable.

World-Class Racing Experience

Since its inception, Swift Springs has been led by former racer and suspension expert Kei Yokota and the chief engineer Yasu Saito. Their first-hand experience and involvement within the race industry have propelled Swift Springs through the ranks of the world’s most prestigious races. Swift quickly became the most recognized and respected name in performance coil springs in motorsports all around the globe.

The brand’s impressive motor racing history started in 1998 with a Nissan Skyline GT-R in the Super Taikyu Endurance championship series in Japan. Swift Springs moved on to support championship teams in the 24 Hours Nurburgring, 24 Hours of Le Mans, D-1 World Grand Prix, F3, Formula Toyota, the Super Taikyu series, and many other world-class races. In 2004, Team Goh’s Audi R8 won first place with Swift Springs at the 24 Hours of Le Mans race.

All Springs are not Created Equal

All coilover spring manufacturers claim to have four factors: lightest in weight, largest amount of stroke, most consistent spring rate, and highest durability against loss of spring height. Only the innovative and revolutionary Swift Springs achieve the fifth factor which is having the fastest reaction speed possible to gain compliance on road surface conditions. While diameters and spring rates may be similar across several brands, the spring manufacturing process is what determines exactly how well they will perform. To achieve all five factors, Swift Springs developed a proprietary steel alloy "HS5.TW", as well as a patented winding method that no other coilover manufacturer can duplicate.

Swift Springs provide drivers with a difference that they can feel and several racing benefits. Swift Springs use a very strong alloy, which means they can use a thinner diameter of wire. In turn, the thinner wire is much lighter and extremely vital given it is unsprung weight. Thinner wire also means that there is more gap between the coils with more “stroke” for the spring. This gives the spring more travel and does not “bottom” as early as thicker wire springs. Lastly, Swift Springs prove to be incredibly consistent and reliable. At the end of one year of racing, Swift Springs are typically within .5-1.0 percent of the rate they were when they just came out of the box.

Upgrade to Swift Springs at Vivid Racing

There is no better time than now to upgrade your vehicle’s suspension to improve its overall stance and performance. Not only do Swift Springs change the appearance of your ride and give it a more aggressive look, but they also enhance the ride quality all around. Vivid Racing carries a wide assortment of Swift Springs’ lowering springs and coilover springs for a range of applications. If you cannot find the exact part you’re looking for above or have any questions regarding springs and fitment, call our parts team at (480) 966-3040.

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