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Swift Springs

Swift Springs

Coilovers.com is an authorized USA dealer for Swift Springs. We carry the active Swift lineup across Sport Springs, SPEC-R Springs, and coilover-replacement springs sold as upgrades for BC Racing, Fortune Auto, KW Suspension, and most other major coilover platforms. Over 80 chassis-specific Swift Spring fitments are available through our catalog.

Call us at 1-800-460-9106 to talk through your build. Free shipping on most Swift Spring orders sold within the United States and Canada.

Why Drivers Choose Swift Springs

Swift Springs occupies a distinct position in the performance suspension market. The brand is not a coilover manufacturer. Swift makes the springs that wrap around the dampers — and they're regarded as the highest-quality motorsport-grade spring made today. Swift springs ship as standard upgrades on premium coilover platforms across the industry, and as direct-fit lowering springs that work with factory shocks on a wide range of chassis.

The customers who buy Swift Springs from us share a common profile. They've already invested in good suspension or stock-replacement dampers, and they want the spring quality to match. They want the rate to stay consistent through the full stroke rather than drifting as the spring fatigues. They want a spring that holds its set ride height over years of use without sagging. Swift delivers all three through a proprietary high-tensile alloy that other spring makers simply don't use at this scale.

The technical difference shows up in three places drivers feel. First, rate consistency: Swift springs maintain their specified rate within tight tolerance through the full compression stroke, where lower-grade springs become progressively stiffer near full compression. Second, height retention: Swift springs do not sag over the lifetime of normal use, so the ride height the driver sets at install is the ride height the car holds three years later. Third, weight: Swift's proprietary alloy lets the same rate be achieved with less mass than a conventional steel spring, reducing unsprung weight at each corner.

The Swift Springs Lineup

Swift's catalog splits across three product categories. Choose based on what dampers are on the car.

Swift Sport Springs — OEM-Damper Lowering Springs

The Sport Springs line is engineered to drop a car running factory shocks. The drop range is conservative — usually 1 to 1.5 inches depending on chassis — and the rate is calibrated to stay within the working range of OEM shock valving. The car lowers, the wheel gap closes, body roll reduces, and the factory ride character largely stays intact. Sport Springs are the right pick when the build keeps the OEM dampers and the driver wants improved stance and handling without replacing the full suspension.

Swift SPEC-R Springs — Track-Tuned Lowering Springs

The SPEC-R line takes the same factory-shock-compatible approach further. Spring rates run at the upper limits of what OEM shock valving can control. Drop heights are more aggressive than the Sport Spring line. SPEC-R is engineered around track-day and autocross use on platforms where the driver wants meaningful handling gains while keeping the factory dampers. The trade-off: ride is firmer than Sport Springs, and SPEC-R is best suited to chassis where the OEM shock has the valving range to handle the higher rate. We can confirm fit for your specific application before you order.

Swift Coilover-Replacement Springs

This is the category that most drivers find Swift through. Coilover platforms ship from the factory with conventional steel springs — chrome silicon on most kits, sometimes with a brand-specific coating. Swift offers replacement springs in matching rates and lengths designed to drop into BC Racing, Fortune Auto, KW, Ohlins, Feal, and most other major coilover platforms. The damper, perch, and ride-height adjustment all carry over. Only the spring changes.

The upgrade is one of the most-installed modifications on premium coilover platforms because the performance gain shows up immediately. Drivers report tighter body control, more consistent damping behavior through long sessions, and a measurable improvement in ride quality over the original springs the kit shipped with. Swift Spring rates can be matched to the factory rate that came on the kit, or stepped up to a custom rate as part of the build.

Swift Springs as Upgrades on Premium Coilover Platforms

The relationship between Swift and the major coilover brands is worth understanding. Swift doesn't just make replacement springs — they ship as standard included equipment on the top tiers of most premium coilover lineups.

BC Racing — Roughly two-thirds of the active BC Racing catalog supports Swift Springs as a factory-installed upgrade at order time, and the HM Series and ZR Series ship with Swift included as standard on most fitments. BC Racing builds the kit, Swift supplies the springs, and the matched combination is what BC's competition customers run. Browse BC Racing coilovers with Swift Springs included.

Fortune Auto — Fortune Auto offers Swift Springs as a custom-build option on most of their 500 Series, 510 Series, and Pro 2-Way Dreadnought kits. The MSC 1-Way exotic-platform kit ships with Swift Springs standard. Fortune Auto's custom-valving approach means Swift Springs at any chosen rate are matched to damping at order time. Browse Fortune Auto coilovers.

Other coilover platforms — Swift coilover-replacement springs fit KW, Ohlins, Feal, and most other major coilover lineups in industry-standard 60mm, 65mm, and 70mm ID sizes. Drop-in replacement is straightforward on any threaded coilover platform.

Customer search terms for Swift Springs cover the full range of product line and pairing variants. Beyond the core Swift Springs and the reversed-word search spring Swift, customers regularly search for the application-specific phrases Swift lowering springs, Swift coilover springs, Swift racing springs, and Swift coilover. The motorsport-specific spring rate package is searched as Swift Spec R, Swift Spec R springs, and Swift Spec R lowering springs. Sport-application owners search Swift sport springs. North American availability is searched as Swift Springs USA.

Coilover-pairing searches make up most of the long-tail. BC Racing pairing appears as BC Racing Swift springs, BC Racing Swift spring, BC Racing coilovers Swift springs, BC BR coilovers with Swift springs, Swift springs for BC coilovers, and BC Swift springs. Fortune Auto pairing appears as Fortune Auto Swift springs. Both pairings deliver the upgrade combination that track-focused builds run most often — call us at 1-800-460-9106 for a coilover-and-Swift-springs quote on your specific chassis.

Swift Springs by Make

The active Swift catalog covers most major performance platforms. Top coverage areas include:

Honda and Acura — Civic SI, Civic Type R, Accord Sport, S2000, ILX, RSX, and Integra Type R fitments across multiple generations. The Honda Civic Type R FK8 (2017-2021) and FL5 (2023+) both have Sport Spec-R fitments. Lower the car, keep the factory shocks, improve handling.

BMW and Mini — M3 (E36 through G80), M4 (F82 and G82), 335i, 328i, and broader 3 Series coverage. The G80 M3 and F80 M3 both have dedicated SPEC-R fitments matched to OEM shock valving.

Subaru — WRX, WRX STI, and BRZ. The 22+ BRZ (ZD8) has a current SPEC-R fitment. Subaru WRX STI through GR generations are covered with track-oriented spring rates.

Toyota and Scion — GR86, FR-S (the original Scion 86 chassis), Mark X, and Supra. The shared 86/BRZ chassis sees high Swift attach because the OEM shocks have valving range that responds well to the SPEC-R rate.

Nissan and Infiniti — 350Z, 370Z (including Nismo), GT-R, and the Infiniti Q60 AWD. The 370Z Nismo SPEC-R fitment is particularly popular with our customer base running mixed street and track duty.

Mazda — Miata (ND and earlier generations), Mazdaspeed 3 (both generations), and RX-8. The ND Miata SPEC-R is a perennial seller — Miata owners run Swift more aggressively than most platforms.

Mitsubishi Evolution — Lancer Evolution 8, 9, and X with separate SPEC-R fitments for GSR and MR variants. The Evo platforms have OEM shock valving that handles SPEC-R rates well.

Additional Swift coverage includes Ford (Focus ST, Focus RS, Fiesta ST, Mustang), Lexus (RC F, GS F, RC350), and Audi (S4, RS3, S3) applications. For complete fitment confirmation against your specific year and chassis, use the make-and-model filter on the product grid or call us at 1-800-460-9106.

Why the Swift Difference Costs More

Swift Springs sit at a higher price point than conventional aftermarket springs, and the question we get from customers is whether the upgrade is worth the difference. The honest answer depends on the build.

For a daily-driver build that lowers the car for stance and modest handling improvement, conventional lowering springs from a value-tier brand will do the job for less money. The driver will not feel the Swift difference in normal commute driving.

For a build that sees track time, autocross use, or spirited canyon driving, the Swift difference is real. Rate consistency through the full stroke means damping behavior stays predictable when the suspension is working hard. Height retention means the corner weights stay set where the driver dialed them in. The proprietary alloy resists fatigue from repeated cycling that breaks down conventional springs over time.

For a build that already runs premium coilovers — BC Racing BR Series or higher, Fortune Auto 500 or higher, KW Variant 3, Ohlins Road & Track — the Swift Spring upgrade is the modification that pulls the most performance out of dampers already capable of more. The spring is the input. Better input, better output.

Frequently Asked Questions

Are Swift Springs better than conventional springs?

For performance applications, yes. Swift's proprietary high-tensile alloy maintains its specified rate through the full compression stroke and resists fatigue better than conventional steel springs. The performance difference is most noticeable on track or in hard-driving street conditions. For low-speed lowering on a daily-driver build, conventional springs perform adequately.

Will Swift Sport Springs work with my factory shocks?

Yes. The Sport Springs line is engineered specifically to work within OEM shock valving range. The drop height is calibrated to stay within the working stroke of factory dampers, and the rate is matched to what the OEM shock can control. SPEC-R Springs are also designed around OEM shock valving, but at the upper limits — the firmer rate is more demanding on factory shocks than the Sport line.

Can I install Swift Springs on BC Racing coilovers?

Yes. Swift Springs is offered as a factory-installed upgrade on most BC Racing coilover kits at order time, and Swift coilover-replacement springs fit BC Racing platforms as a drop-in upgrade after the original kit purchase. The HM Series and ZR Series ship with Swift Springs included on most fitments. Call us to confirm Swift compatibility for your specific BC Racing application.

Do Swift Springs sag over time?

No. Swift springs maintain their set ride height over the lifetime of normal use. This is one of the core engineering advantages of the proprietary alloy. Lower-grade springs typically sag 5-10mm within the first year and continue settling over time. Swift's height retention is the reason corner-balanced cars stay corner-balanced after a season of use.

Where are Swift Springs made?

Swift Springs are designed and manufactured in Japan. The brand has been engineering high-performance springs since the 1990s and supplies motorsport teams in Super GT, Super Formula, and Japan's professional drift series in addition to the aftermarket lineup.

Do I need an alignment after installing Swift Springs?

Yes. After installing any lowering spring or changing ride height, a four-wheel alignment is essential. The new ride height changes camber, toe, and caster geometry. Skipping the alignment causes uneven tire wear and degraded handling. Plan the alignment as part of the install job.

Related Collections

Related pages across the Coilovers.com catalog:

Ready to Order Swift Springs

Browse the Swift catalog below by make and platform, or filter by Sport Springs, SPEC-R Springs, or coilover-replacement springs. Each fitment page shows the available spring rates and confirms compatibility with the dampers on your car.

In-stock Swift orders typically ship the same business day on orders placed before 2 PM ET. Some fitments — particularly less-common SPEC-R variants — may be order-only from Swift's North American distribution with a 1-2 week lead time. We confirm exact ship timing at order confirmation.

Call 1-800-460-9106 for fitment confirmation, rate selection guidance, coilover-compatibility questions, or to place an order with one of our specialists. Coilovers.com handles Swift technical questions and BC Racing or Fortune Auto pairing in-house.