TEIN USA Coilovers

Coilovers.com is the authorized coilovers TEIN dealer for the United States. Shop the active TEIN range in one place: Street Basis Z, Street Advance Z, Flex Z, RX1, Mono Sport, Flex AVS, and Flex A. Browse by series in the grid below, or filter by your make and model to find the right TEIN coilover kit for your build. Call us at 1-800-460-9106 for fitment guidance, pricing, or to place an order with one of our specialists.

The TEIN suspension range is engineered in Japan with platform-specific application engineering for Japanese chassis. We carry TEIN coilovers for Acura, Honda, Toyota, Lexus, Mazda, Mitsubishi, Nissan, Scion, Subaru, and Infiniti applications. Free shipping on most kits within the United States.

Why Customers Choose TEIN

The customers who buy TEIN coilovers from us share a common profile. They drive Japanese performance cars. They want suspension engineered for their specific chassis platform. They want a clear product ladder from entry-level street coilovers up through track-focused systems. They want the option of EDFC electronic damping for cabin-controlled adjustment. TEIN delivers all four.

TEIN has been engineering and manufacturing performance suspension in Japan for over four decades. Each model in the active range is developed for specific Japanese chassis platforms. Damping force is calibrated to the spring rate of each application, which prevents the bouncy ride that comes from oversprung or undersprung kits. Most TEIN adjustable lines offer 16 stages of damping force adjustment, letting drivers tune compression and rebound for road conditions, driving style, or seasonal changes. Coilovers.com customers consistently report very good quality across years of daily use. The good quality of TEIN's manufacturing shows in the low rate of warranty contact volume on the kits we ship. The biggest benefit owners cite in their driving impressions is that the ride feels right from the first install. It stays that way as long as the car runs on stock-replaced TEIN suspension.

TEIN coilovers improve handling by lowering the center of gravity and reducing body roll, with adjustability calibrated for street and track use. The brand's worldwide motorsport involvement feeds the production-line engineering. Coilovers.com customers report durability across multiple years of street and spirited driving, with low warranty contact volume on the kits we ship. For deep coverage of the brand's history and engineering philosophy, see our TEIN editorial brand page.

Shop TEIN Coilovers by Series

The active TEIN range covers seven distinct coilover lines. Each series solves a specific use case. Use the breakdown below to identify which TEIN coilover kit fits your build, then browse the matching products in the grid.

TEIN Street Basis Z

The Street Basis Z is the entry point in the TEIN ladder. Twin-tube damper design, 1 to 3 inches of height adjustability through the shock body, no-sag springs, and a rust-and-debris-resistant shock-body coating. The Street Basis Z does not offer damping force adjustment and ships without upper mounts. The right starter kit for an owner who wants the TEIN ride character at the lowest price point in the active range. Shop Street Basis Z applications in the grid below.

TEIN Street Advance Z

The Street Advance Z carries the same twin-tube damper, 1-to-3-inch height range, no-sag springs, and protective shock-body coating as the Street Basis Z. It adds 16 clicks of damping force adjustment and EDFC compatibility, which lets drivers run a TEIN Electronic Damping Force Controller for in-cabin damping changes. Like the Street Basis Z, the Street Advance Z does not include upper mounts. The right step up when 16-click tuning matters but the higher-tier Flex Z is more than the build needs.

TEIN Flex Z Coilovers

The Flex Z is the most popular TEIN kit at Coilovers.com. The TEIN Flex Z runs a twin-tube damper with full-length adjustability through the threaded body design. The threaded body lets separate spring preload and ride height adjust independently of each other. The driver can drop the car without compressing the springs into a stiffer-than-intended response. Sixteen clicks of damping force adjustment, EDFC compatibility, high-performance damper oil, no-sag springs, and the rust-and-debris-resistant shock-body coating are all standard on TEIN Flex Z coilovers. Most Flex Z coilover applications include reinforced rubber upper mounts or pillow ball mounts, with front camber adjustment on the pillow ball mount variants. The Flex Z coilover is the volume seller because TEIN Flex Z coilovers land the full TEIN feature set at a value tier that makes the kit accessible to a wide group of buyers. TEIN Flex Z coilover applications cover Honda, Subaru, Toyota, Mazda, Nissan, Lexus, and several other Japanese chassis groups. The Flex Z coilover is the kit Coilovers.com ships most across all of those platforms.

TEIN Flex A

The Flex A builds on the Flex Z platform and adds a hydraulic bump stopper mechanism (H.B.S.) to the damper assembly. The H.B.S. system absorbs sharp impacts at the end of damper travel: speed bumps, road seams, and mid-corner ruts. The system converts those impacts into smoother body motion. The Flex A retains the Flex Z's full-length adjustability, 16-click damping, EDFC compatibility, and twin-tube design. The right step up for drivers who want the Flex Z feature set with refined ride quality on rough roads.

TEIN Flex AVS

The Flex AVS is the premium variant in the Flex platform. It combines the H.B.S. system with additional refinements for drivers who run their cars hard on imperfect surfaces. Like the Flex A, the Flex AVS is full-length adjustable, 16-click damping, EDFC compatible, and twin-tube. The right choice for drivers who want the broadest envelope of the Flex platform: comfortable cruising, confident spirited driving, and absorbed impact behavior on rough roads.

TEIN RX1

The RX1 is the highest-performance street system in the active Flex platform. It carries the H.B.S. hydraulic bump stopper, 16-click damping force adjustment, full-length adjustability, EDFC compatibility, and the twin-tube damper design that defines the Flex range. The RX1 is the kit TEIN engineers for the Honda Civic Type R FK8 (2017-2021) and the FL5 (2023+). The same RX1 part fits both chassis. The RX1 is also available across additional Honda and Acura applications and is the recommended Type R kit when the build prioritizes spirited street driving with occasional track use.

TEIN Mono Sport

The Mono Sport is the track-oriented kit in the active range. Higher spring rates, firmer damping, and a construction philosophy aimed at entry-to-mid-level track use. The Mono Sport is engineered for several JDM-market Honda and Acura platforms, including the Acura/Honda Integra Type R DC2 (1997-2001) and the Acura/Honda NSX-R. These applications are designed for the JDM chassis specifically. The right choice for owners who want a kit calibrated for track work and accept the firmer ride character that comes with track-focused damping.

TEIN Coilovers by Make

TEIN's specialty is Japanese performance car suspension. The active range covers ten Japanese-brand platforms in our market. The breakdown below is a fitment-orientation guide. Use the make-and-model filter on the product grid to find the exact TEIN coilover kit for your specific year and chassis.

TEIN Coilovers for Honda

Honda is the largest single platform group in our TEIN sales. The Civic Type R FK8 (2017-2021) and FL5 (2023+) both use the TEIN RX1 kit. The Civic Si, the Civic generations from EG through FE, the Accord across multiple generations, the S2000, the CR-X, the CR-Z, the Fit, and the Prelude all see TEIN Flex Z coilovers application coverage. Civic owners across all generations are the most common Flex Z coilover buyers in our customer base. Builds range from EG Civic platforms through current Civic generations. Whether the build starts from a stock Civic chassis or a heavily modified one, TEIN Flex Z coilovers ship with damping calibrated to that application. The intended-use envelope is the same across stock and modified Civic builds. Browse the full Honda coilover collection for cross-brand fitments, or call 1-800-460-9106 for chassis-specific guidance.

Acura Applications

Acura platforms in the active TEIN range include the Integra Type R DC2 (1997-2001) on TEIN Mono Sport (JDM-designed), the NSX-R on TEIN Mono Sport (also JDM-designed), and additional Acura applications across the RSX, TSX, TL, and ILX on TEIN Flex Z and Street Advance Z. Acura customers ordering for North American builds should call us for fitment confirmation against the specific chassis, especially for the JDM-platform Mono Sport applications.

TEIN Coilovers for Toyota

Toyota TEIN coilovers cover the Supra (MK4 A80 and MK5 A90), the Celica, the MR2 (multiple generations), the Corolla and Corolla AE86, the GR86, the Camry, and the Avalon. Toyota Supra owners run TEIN Flex Z and Mono Sport setups. The 86 and Subaru BRZ share a chassis and share TEIN application coverage. Toyota customers represent a meaningful share of our TEIN sales.

TEIN Coilovers for Subaru

Subaru is the second-largest single-make group in our TEIN sales after Honda. The WRX (multiple generations from GD through VB), the WRX STI, the BRZ, the Forester, the Impreza, the Legacy, and the Outback all see TEIN coverage. Flex Z and Street Basis Z are the most common Subaru fitments. WRX and STI owners frequently pair TEIN Flex Z with EDFC for the daily-driver-to-spirited-driving range that Subaru platforms encourage. Browse the full Subaru coilover collection for cross-brand fitments alongside the TEIN range.

TEIN Coilovers for Mazda

Mazda TEIN coilovers cover the Miata MX-5 (NA, NB, NC, ND generations), the RX-7 (FC and FD), the RX-8, the Mazda 3 and Mazdaspeed 3, and the Mazda 6 and Mazdaspeed 6. The Miata is one of the most popular TEIN platforms in our customer base. The Flex Z is the typical choice for street-driven Miatas, with the Mono Sport for autocross and track-focused builds. RX-7 owners frequently choose these coilovers for the platform's notorious sensitivity to suspension setup.

Nissan and Infiniti Applications

Nissan TEIN coverage includes the 350Z, the 370Z, the GT-R (R35), the Skyline (multiple generations), the Silvia (S13, S14, S15), the 240SX, the Sentra and Sentra SE-R, and the Maxima. Infiniti applications cover the G35, the G37, the Q50, the Q60, and the M37 / M45 / M56. The 240SX and Silvia chassis are perennial TEIN platforms among drift-build customers. The 350Z and 370Z see Flex Z and Mono Sport applications across both street and track use.

Lexus Applications

Lexus applications include the IS (IS300, IS250, IS350, IS-F), the GS, the SC400 and SC430, the LS400 and LS430, and the RC F. The IS300 and IS-F have strong TEIN aftermarket support. Lexus customers tend toward the Flex Z and Flex A for the ride compliance that the brand's owners typically prioritize.

Mitsubishi Applications

Mitsubishi TEIN coverage includes the Lancer Evolution (multiple generations from V through X), the Eclipse (3G and 4G), the 3000GT, and the Galant VR-4. The Lancer Evolution is the most common Mitsubishi TEIN platform among our customers, with Flex Z and Mono Sport applications across both street and rally-style builds.

Scion Applications

Scion-branded applications cover the FR-S (the Toyota 86 sister chassis), the tC, the xB, and the xD. Scion FR-S owners frequently choose TEIN Flex Z for the same reasons Toyota 86 and Subaru BRZ owners do. The Scion brand has been retired by Toyota since 2016, but the FR-S, tC, xB, and xD chassis remain active platforms in our TEIN sales.

EDFC Electronic Damping Force Controllers

The TEIN EDFC system lets a driver adjust damping stiffness from inside the car while driving. Manual damping adjustment requires turning a knob at the strut, which usually means stopping the car and reaching into the wheel well. EDFC replaces that with small motors at each damper that respond to inputs from a controller mounted near the steering wheel.

Coilovers.com offers the two current EDFC controller systems:

• EDFC Active Pro. Multiple-preset save capability and manual or automatic damping change response.

EDFC compatibility covers Flex Z, Flex A, Flex AVS, RX1, Mono Sport, Street Advance Z, and Street Basis Z applications. The Flex Z is the most common EDFC pairing because it delivers the broadest value when in-cabin damping adjustment is added. EDFC is also available as an upgrade after the original kit purchase. A Flex Z bought without EDFC can have the controller added later.

Ride Height Adjustment on TEIN Kits

The Flex platform separates ride height adjustment from damping adjustment. This is one of the core advantages of the full-length design. Adjusting ride height in coilover systems can significantly impact a car's handling characteristics, allowing for improved cornering stability and reduced body roll. Proper ride height adjustment can enhance a car's aerodynamics, which is crucial for performance tuning, especially at higher speeds.

On full-length adjustable kits like the Flex Z, the spring perch and the lock collar move together to set ride height without changing spring preload. On shock-body-only adjustable kits like the Street Basis Z, height changes happen through the lower mount position. The ability to adjust ride height allows drivers to tailor their suspension setup to specific driving conditions, whether for daily driving or track use.

Most TEIN kits offer 1 to 3 inches of height adjustability. The exact range depends on the application and the chassis design. The product page for each application lists the specific drop range.

Choosing the Right Coilover Kit

Coilover kits are designed to replace a car's factory suspension system, providing adjustable ride height and improved handling characteristics. Many coilover kits feature adjustable damping settings, allowing drivers to customize the stiffness of their suspension based on driving conditions and personal preference. Coilover kits are available across many car makes and models, making them a popular choice for car enthusiasts looking to enhance performance and aesthetics.

Match the TEIN line to the use case:

• Street Basis Z. Entry-level lowering on a daily driver, no damping adjustment, no upper mounts.
• Street Advance Z. 16-click damping and EDFC compatibility matter, but upper mounts are not needed.
• Flex Z. Full TEIN feature set at the most accessible cost; the volume-seller choice for most builds.
• Flex A. Flex Z platform with H.B.S. hydraulic bump stops for refined ride quality on rough roads.
• Flex AVS. Premium Flex variant with H.B.S. plus additional refinements for hard-driven cars on imperfect surfaces.
• RX1. Honda Civic Type R FK8 and FL5, plus other performance Honda and Acura platforms benefiting from H.B.S.
• Mono Sport. Track-focused builds on supported JDM-platform chassis.

For deeper coverage of the brand, the engineering philosophy, the matrix v2 portfolio compare across all carried brands, the maintenance and install procedures, and a 15-question FAQ block, see the TEIN editorial brand page. Or call 1-800-460-9106 for guided selection across the lineup.

Pricing and Sale Information

TEIN price points run from accessible entry-level kits through premium track-oriented systems. Each product page lists the current price, sale status, MAP-compliance details where applicable, and shipping availability. Coilovers.com offers free shipping on most kits within the United States.

We monitor the TEIN market regularly and adjust pricing to reflect what real buyers are paying. Sale events run periodically across the TEIN range. The product grid shows the current price for each application, with any active sale pricing visible on the listing. Volume orders and custom-rate questions are handled by our specialist team.

Warranty and Service

TEIN provides a 1-year limited warranty on Street Basis Z, Street Advance Z, Flex Z, RX1, Mono Sport, Flex AVS, and Flex A coilovers. The same 1-year limited warranty applies to the EDFC Active Pro and EDFC5 Active Pro controllers. Warranty claims require the original purchase receipt.

TEIN also offers an overhaul service for the lines that support it. Details at tein.com/service. The Flex Z is sealed and not engineered for internal rebuild; full replacement is the path at end of useful life. Other lines that support overhaul service can be sent in through TEIN's program.

Frequently Asked Questions

Is TEIN a Japanese brand?

Yes. TEIN is headquartered in Yokohama, Japan, manufactures in Japan, and has been engineering performance suspension since the 1980s. Coilovers.com sources directly as the authorized TEIN dealer for the United States.

Is a TEIN suspension good for daily driving?

Yes. Most TEIN lines are engineered for daily driveability. The Flex Z is the most common daily-driven TEIN kit. The damping-matched-to-spring-rate approach plus 16-click adjustability lets drivers soften for commutes and firm up for spirited driving without changing kits. The Street Basis Z and Street Advance Z are also street-oriented. The Mono Sport is more track-focused and trades street comfort for track responsiveness. It can daily drive, but the ride is firmer.

How long does a TEIN suspension last?

With proper installation, annual inspection, and basic maintenance, TEIN coilovers typically deliver multiple years of service across daily and spirited use. Coilovers.com customer support volume on these coilovers is low. The kits hold up well, and most owners replace rather than rebuild every several years. Driving conditions and use patterns affect how long coilovers last. A track car that sees heavy weekend use will need new components faster than a daily driver. Following the instruction manual at install matters: torque values, lock collar position, and the separate spring preload setting all affect long-term wear. Once installed correctly, the kit holds its character for years longer than it would if shortcuts were taken at fitment.

Will TEIN coilovers fit a car running stock suspension parts?

Yes. TEIN Flex Z coilovers and the rest of the active range are engineered to drop into a chassis previously running stock dampers and stock springs. The kit replaces both the stock damper and the stock spring as a matched assembly. After installation, the closed wheel gap, sharper turn-in, and reduced body roll are the most obvious changes. Cheap coilovers from unbranded sources often skip the matched-damping engineering, which leads to a bouncy ride or accelerated wear. TEIN's matched valving is the reason owners moving up from cheap coilovers consistently report the upgrade fixed the ride quality complaints they had. The same matched-damping behavior helps under braking, where stock dampers often pull or wallow with stiffer aftermarket springs.

Can you daily drive with coilovers?

Yes. Modern coilover kits, including most of the TEIN range, are engineered for daily driveability. The key is choosing a kit calibrated for street use rather than a track-only setup. The TEIN Flex Z, Flex A, Flex AVS, Street Basis Z, and Street Advance Z are all daily-driver-friendly. The Mono Sport is firmer and trades comfort for track responsiveness. Adjustable damping on the Flex platform lets the driver soften the ride for commutes.

What is the price range on TEIN kits?

Pricing varies by series and application. Entry-level Street Basis Z kits sit at the most accessible end of the range. TEIN Flex Z coilovers occupy the mid-tier value sweet spot. TEIN Flex Z coilovers are the most-shipped TEIN coilovers in our catalog, shipping across all ten Japanese-platform groups we cover. RX1, Flex A, and Flex AVS sit at higher price points reflecting the H.B.S. system and additional refinements. Mono Sport pricing reflects the track-oriented build. EDFC Active Pro and EDFC5 Active Pro controllers are sold separately and pair with TEIN Flex Z coilovers and the rest of the supported lines. Each product page on this collection lists the current price.

How fast is shipping on TEIN orders?

Coilovers.com ships most TEIN kits free within the United States. Shipping windows depend on the specific kit and inventory status at order time. Many in-stock TEIN orders ship within one to three business days. Special-order applications may take longer. The product page for each application includes the current availability status. TEIN Flex Z coilovers are the most frequently in-stock kit across the active range, so most TEIN Flex Z coilover orders ship inside the standard one-to-three-day window. Once received and installed, the typical TEIN Flex Z coilover kit is ready for break-in driving the same day. Coilovers.com customers who want help confirming Flex Z coilover availability for a specific chassis can call 1-800-460-9106.

How do I find the right TEIN kit for my car?

Use the make-and-model filter on the product grid to narrow the lineup to applications that fit your specific year, make, and model. Then choose the series that matches your use case using the breakdown above. If you want a guided walk through the options for your specific build, call 1-800-460-9106 and one of our specialists will help you select the right TEIN coilovers. For deeper background on the brand and the engineering, see the TEIN editorial brand page.

Ready to Order TEIN USA Coilovers

Coilovers.com is the authorized TEIN dealer for Acura, Honda, Toyota, Lexus, Mazda, Mitsubishi, Nissan, Scion, Subaru, and Infiniti applications. Free shipping on most kits within the United States. Call 1-800-460-9106 for fitment guidance, build advice, custom-rate questions, EDFC pairing, or to place an order with one of our specialists. Or browse the active TEIN range in the product grid below.