TEIN Flex Z Coilover Kit - 2018-2027 Tesla Model 3 & 2020-2027 Model Y Dual Motor (Long Range AWD / Performance)

Overview

The TEIN Flex Z coilover kit is built to combine everyday comfort with sharper handling on all-wheel-drive (dual motor) Tesla Model 3 (2018-2027) and Model Y (2020-2027), covering the Long Range AWD and Performance trims. It evolved from TEIN's Street Flex line and is manufactured in Yokohama, Japan, using a twin-tube oil and gas design that stays composed over rough pavement while tightening up body control when you push.

This kit uses a higher spring-rate specification matched to the heavier dual-motor Long Range and Performance trims. Ride height and spring preload adjust separately, so you keep full damper stroke at any height, and damping is adjustable across 16 stages to dial in the feel you want.

Key Features

• 16-stage adjustable damping (compression and rebound together) for street comfort or sport firmness
• Twin-tube structure tuned for ride comfort on real-world roads
• Full-length ride height adjustment with little to no change in ride quality
• Front upper mounts allow camber adjustment on the strut suspension
• OEM-spec brake hose fittings and vehicle-specific brackets for clean installation
• Anti-corrosion ZT coating, powder-coated brackets, and durable dust boots
• High-tensile, sag-resistant springs (SAE9254)
• Made in Yokohama, Japan, backed by a 1 year warranty

Why Twin-Tube

Because the oil and gas chambers are not stacked in series, a twin-tube damper secures more stroke and runs at lower gas pressure, which keeps friction low. The result is a supple feel at low speed and stable control at higher speed, even with larger wheels and a lowered stance.

Built To Last

Shell cases use high-strength STKM13C steel and TEIN's in-house ZT coating for protection against stone chips and rust, which makes the kit well suited to wet climates and coastal areas. Final assembly is done in a clean room for consistent quality and reliability.

Sealed Damper Design

Flex Z uses a sealed damper from the factory, which is a big part of how TEIN keeps the price down. If service is ever needed, TEIN offers a low-cost, quick replacement program rather than a traditional rebuild.

Specifications

Note: higher spring-rate specification, matched to the heavier dual-motor Long Range and Performance trims.

Fitment

Fits all-wheel-drive (dual motor) Tesla Model 3 and Model Y, including Long Range AWD and Performance, across both pre-refresh and refreshed (Highland and Juniper) cars, with the Performance exceptions noted below. Professional mobile installation is available throughout the San Francisco Bay Area. If you are unsure about fitment for your exact car, reach out before ordering and we will confirm.

Vehicle Fitment

Tesla Model 3 Long Range AWD (Dual Motor)

• 2018 Tesla Model 3 Long Range AWD
• 2019 Tesla Model 3 Long Range AWD
• 2020 Tesla Model 3 Long Range AWD
• 2021 Tesla Model 3 Long Range AWD
• 2022 Tesla Model 3 Long Range AWD
• 2023 Tesla Model 3 Long Range AWD
• 2024 Tesla Model 3 Long Range AWD
• 2025 Tesla Model 3 Long Range AWD
• 2026 Tesla Model 3 Long Range AWD
• 2027 Tesla Model 3 Long Range AWD

Tesla Model 3 Performance (Dual Motor)

• 2018 Tesla Model 3 Performance
• 2019 Tesla Model 3 Performance
• 2020 Tesla Model 3 Performance
• 2021 Tesla Model 3 Performance
• 2022 Tesla Model 3 Performance
• 2023 Tesla Model 3 Performance
• 2024 Tesla Model 3 Performance

Tesla Model Y Long Range AWD (Dual Motor)

• 2020 Tesla Model Y Long Range AWD
• 2021 Tesla Model Y Long Range AWD
• 2022 Tesla Model Y Long Range AWD
• 2023 Tesla Model Y Long Range AWD
• 2024 Tesla Model Y Long Range AWD
• 2025 Tesla Model Y Long Range AWD
• 2026 Tesla Model Y Long Range AWD
• 2027 Tesla Model Y Long Range AWD

Tesla Model Y Performance (Dual Motor)

• 2020 Tesla Model Y Performance
• 2021 Tesla Model Y Performance
• 2022 Tesla Model Y Performance
• 2023 Tesla Model Y Performance
• 2024 Tesla Model Y Performance
• 2025 Tesla Model Y Performance

Does Not Fit

• 2025 and newer Tesla Model 3 Performance (Highland) with factory electronically adjustable suspension
• 2026 and newer Tesla Model Y Performance (Juniper) with factory electronically adjustable suspension
• Any Tesla Model 3 or Model Y equipped with factory electronically adjustable (adaptive) suspension