How does this differ from the standard Flex Z kit?

Only in the springs. This kit uses 11.0 kgf/mm (616 lbs/in) springs at all four corners, while the standard AWD Flex Z kit uses 10.0 kgf/mm (560 lbs/in). Dampers and adjustment are otherwise the same, so the choice comes down to how firm the owner wants the car.

Which Teslas do the High Spring Rate Coilovers fit?

The TEIN High Spring Rate Coilovers fit the all-wheel-drive Tesla Model 3 from 2017 and Model Y from 2020 to 2025, in Long Range and Performance trims. Rear-drive cars are not covered by this kit; TEIN offers a separate RWD Flex Z kit for them.

How much lower will the car sit?

On a Model 3, TEIN recommends 1.0 to 1.8 inches lower at the front and 1.2 to 2.0 inches at the rear, with a typical drop of 1.4 and 1.6 inches. On a Model Y the range is 0.6 to 1.4 inches front and 0.8 to 1.6 inches rear, typically 1.0 and 1.2.

What does the kit do for ride comfort?

TEIN tuned the dampers to cut the stiff ticking and small oscillations of the factory suspension and the knocking it shows at low and middle speeds. The 11.0 kgf/mm springs make this the firmer of the two AWD Flex Z kits, and the 16-level knob fine tunes the balance.

Can the dampers be rebuilt?

No. Flex Z dampers are sealed by crimping and cannot be overhauled. TEIN instead offers a replacement service that supplies a new damper body, with damping and stroke customisable within limits, and reuses the original upper mount, lower bracket and spring.

Description

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Description

TEIN Flex Z High Spring Rate Coilovers for AWD Tesla Model 3 and Model Y

TEIN’s High Spring Rate Coilovers for the dual-motor Tesla Model 3 and Model Y pair the Flex Z twin-tube damper with firmer springs than those in TEIN’s standard Flex Z kit for these cars. TEIN set the dampers to reduce the stiff ticking and small oscillations of the factory suspension, along with its knocking at low and middle speeds. The firmer springs suit an owner who wants less body movement; anyone chasing comfort alone is better served by the standard version.

How It Rides

Flex Z uses twin-tube dampers whose oil and gas chambers are not in series, a layout TEIN chose for generous stroke and low friction. Shell cases are high-strength STKM13C steel. Because ride height is set by case length, the car can be lowered with little change to the ride, and TEIN quotes a typical drop of about 1.4 inches at the front of a Model 3.

Features

11.0 kgf/mm (616 lbs/in) springs at all four corners
One 16-level ADVANCE Needle knob per damper sets compression and rebound together
EDFC ready: 32 levels with EDFC, 64 with EDFC ACTIVE or ACTIVE PRO
Wrought aluminium spring seats turn on low-friction resin thrust washers
Adjusting wrench accepts a 12.7 mm square drive spinner or torque wrench

Specifications

Model 3 front height range: -4.1 to +0.8 in (recommended -1.8 to -1.0)
Model 3 rear height range: -2.6 to -1.0 in (recommended -2.0 to -1.2)
Model Y front height range: -4.0 to -0.2 in (recommended -1.4 to -0.6)
Model Y rear height range: -1.6 to -0.3 in (recommended -1.6 to -0.8)
Upper mounts: Reinforced rubber

What’s Included

Twin-tube dampers (x4)
Springs (x4)

Applications

Tesla Model 3 (AWD Long Range, Performance): 2017-present | dual motor
Tesla Model Y (AWD Long Range, Performance): 2020-2025 | dual motor

Notes

TEIN marks the High Spring Rate Coilovers compatible with the Long Range and Performance trims
The softer 10.0 kgf/mm version, otherwise identical, is the TEIN Flex Z Coilovers for AWD Tesla Model 3 and Model Y
Sealed dampers cannot be overhauled; TEIN replacement service fits a new damper body to the original mount, bracket and spring
An EDFC controller for in-cabin adjustment is an optional extra

Frequently Asked Questions

How does this differ from the standard Flex Z kit? Only in the springs. This kit uses 11.0 kgf/mm (616 lbs/in) springs at all four corners, while the standard AWD Flex Z kit uses 10.0 kgf/mm (560 lbs/in). Dampers and adjustment are otherwise the same, so the choice comes down to how firm the owner wants the car.
Which Teslas do the High Spring Rate Coilovers fit? The TEIN High Spring Rate Coilovers fit the all-wheel-drive Tesla Model 3 from 2017 and Model Y from 2020 to 2025, in Long Range and Performance trims. Rear-drive cars are not covered by this kit; TEIN offers a separate RWD Flex Z kit for them.
How much lower will the car sit? On a Model 3, TEIN recommends 1.0 to 1.8 inches lower at the front and 1.2 to 2.0 inches at the rear, with a typical drop of 1.4 and 1.6 inches. On a Model Y the range is 0.6 to 1.4 inches front and 0.8 to 1.6 inches rear, typically 1.0 and 1.2.
What does the kit do for ride comfort? TEIN tuned the dampers to cut the stiff ticking and small oscillations of the factory suspension and the knocking it shows at low and middle speeds. The 11.0 kgf/mm springs make this the firmer of the two AWD Flex Z kits, and the 16-level knob fine tunes the balance.
Can the dampers be rebuilt? No. Flex Z dampers are sealed by crimping and cannot be overhauled. TEIN instead offers a replacement service that supplies a new damper body, with damping and stroke customisable within limits, and reuses the original upper mount, lower bracket and spring.

About TEIN

TEIN was founded in Yokohama, Japan, in 1985 by former rally mechanic Hakaru Ichino, joined soon after by driver Yoshio Fujimoto. The team reached the World Rally Championship in 1989, and in 1995 Fujimoto won the Safari Rally in a Toyota Celica GT-FOUR, the first Japanese driver to do so. TEIN launched its own dampers in 1990 and came to supply around 80 percent of the dampers in the N1 Taikyu endurance series. TEIN USA has served the Americas from Downey, California, since 2001.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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TEIN Flex Z High Spring Rate Coilovers for AWD Tesla Model 3 and Model Y [VSAQS-C1AA3-C]

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TEIN Flex Z High Spring Rate Coilovers for AWD Tesla Model 3 and Model Y

How It Rides

Features

Specifications

What’s Included

Applications

Notes

Frequently Asked Questions

About TEIN

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