TEIN Street Advance Z Coilovers Tesla Model 3 & Model Y AWD – GSAQS-91AA2
Upgrade the handling, stance and ride control of your compatible Tesla Model 3 or Model Y AWD with the TEIN Street Advance Z Coilover Kit GSAQS-91AA2.
Designed for fast-road and everyday use, the Street Advance Z combines 16-stage adjustable damping, height adjustment, twin-tube damper construction and matched 11 kgf/mm front and rear springs to give the Tesla a more controlled and responsive feel without turning it into an uncompromising track car.
Key Features:
- TEIN Street Advance Z suspension kit
- Fits selected Tesla Model 3 & Model Y AWD applications
- 16-stage damping force adjustment
- Ride-height adjustable via spring seat
- Twin-tube damper construction
- Front spring rate: 11 kgf/mm
- Rear spring rate: 11 kgf/mm
- Uses original/OE upper mounts
- High-performance TEIN damper oil
- Durable powder-coated springs
- Part Number: GSAQS-91AA2
TEIN describes Street Advance Z as a street-focused suspension system designed to combine ride comfort with improved handling and adjustable damping.
In stock
Delivery & Return
We aim to dispatch orders as quickly as possible using reliable UK courier services. Delivery times can vary depending on stock availability, supplier location and the type of product ordered.
Estimated delivery times are shown where available, but these should be treated as a guide rather than a guaranteed delivery date.
Some specialist, made-to-order, imported or supplier-direct performance parts may take longer to arrive. If you need a part by a specific date, we recommend checking availability before ordering.
Once your order has been dispatched, tracking information will be provided where available.
UK Delivery
We deliver throughout the United Kingdom.
Shipping charges are calculated at checkout based on the size, weight and destination of your order. Larger or heavier items may have an additional delivery charge.
Deliveries to the Scottish Highlands, Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and other remote locations may take longer or incur additional charges.
International Delivery
International shipping may be available for selected products and destinations.
Import duties, taxes, customs charges and local handling fees are the responsibility of the customer unless stated otherwise. These charges are not included in the product price or standard shipping cost.
Please check your local import requirements before placing an international order.
Incorrect, Damaged or Faulty Items
Please inspect your order as soon as it arrives.
If your item is damaged in transit, faulty or different from what you ordered, contact us as soon as possible with your order number and clear photographs where relevant.
We will review the issue and advise you of the appropriate next steps.
Vehicle Fitment & Compatibility
It is the customer’s responsibility to check that a product is suitable for their vehicle before installation.
Please verify the vehicle model, year, engine, chassis code, part number and any relevant brake, suspension or drivetrain specification before ordering.
If you are unsure about compatibility, contact us before purchase with your vehicle registration or VIN and the product SKU where possible.
We cannot accept responsibility for incorrect fitment caused by inaccurate vehicle information, non-standard modifications or aftermarket conversions that were not disclosed before purchase.
Special Order & Made-to-Order Products
Some performance parts are specially ordered, imported, customised or manufactured specifically for a customer.
These products may be subject to different cancellation and return conditions. Where applicable, this will be confirmed before the order is processed.
Refunds
Approved refunds are normally issued back to the original payment method after the returned item has been received and inspected.
Original delivery charges and return postage may not be refundable unless the item is faulty, damaged or supplied incorrectly.
Please allow time for your bank or payment provider to process the refund after it has been issued.
Need Help?
If you have any questions about delivery, returns or product compatibility, please contact Performance Car Parts UK before ordering. We will be happy to help you check product details and fitment information.
TEIN Tesla Model 3 & Model Y AWD Coilovers – GSAQS-91AA2
Transform the suspension setup of your compatible Tesla Model 3 or Tesla Model Y AWD with the TEIN Street Advance Z Damper Kit GSAQS-91AA2.
The Street Advance Z range has been developed for drivers who want a lower stance, improved body control and more responsive handling while retaining the road manners required for daily use.
Unlike a fixed-rate sports suspension setup, the TEIN Street Advance Z gives the driver 16 levels of damping force adjustment, allowing the characteristics of the dampers to be altered to suit different roads, driving styles and personal preferences. TEIN states that the damping adjustment simultaneously changes compression and rebound characteristics.
Adjustable Damping for Road and Performance Driving
The TEIN GSAQS-91AA2 coilover kit provides 16-stage damping adjustment, giving you significantly more control over how the Tesla responds to bumps, changes of direction and higher-speed cornering.
A softer setting can be selected when comfort is the priority, while firmer settings can provide increased body control during more spirited driving.
This makes the Street Advance Z particularly well suited to Tesla owners who use their vehicle every day but want greater suspension control than the factory setup provides.
Ride Height Adjustment
The Street Advance Z uses a threaded spring-seat ride-height adjustment system.
Ride height is changed by moving the lower spring seat along the threaded damper body. TEIN states that this system provides a simple and reliable method of adjusting vehicle height.
Exact achievable and recommended lowering varies according to Model 3 or Model Y variant, production year and chassis specification.
Twin-Tube Damper Construction
TEIN uses a twin-tube internal structure in the Street Advance Z.
Compared with many mono-tube designs, TEIN says its twin-tube layout can provide a longer damper stroke with lower internal repulsive force, helping to maintain comfort over rough roads while providing stability at higher speeds.
This characteristic makes Street Advance Z especially suitable for performance-oriented road cars where ride quality remains important.
11 kgf/mm Front and Rear Springs
TEIN specifies an 11.0 kgf/mm spring rate at both the front and rear for GSAQS-91AA2:
Front spring rate: 11 kgf/mm
Rear spring rate: 11 kgf/mm
The matched rates are intended to work together with the vehicle-specific Street Advance Z dampers.
High-Quality TEIN Springs
TEIN manufactures its suspension springs using high-strength SAE9254 steel and applies a durable powder-coated finish to improve resistance to corrosion and long-term sagging.
The GSAQS-91AA2 kit includes springs, as confirmed by TEIN’s application data.
Uses Factory Upper Mounts
This Street Advance Z application uses the Tesla’s original upper mounts rather than including replacement upper mounts.
TEIN identifies the upper-mount specification as STD, which TEIN defines as upper mounts not included.
Your original top mounts therefore need to be retained or replaced separately if required.
Why Choose TEIN Street Advance Z GSAQS-91AA2?
The TEIN Tesla Model 3 / Model Y coilover kit is a strong option for owners looking for a road-biased suspension upgrade rather than a dedicated motorsport setup.
Benefits include:
- Adjustable suspension damping
- Lower ride-height capability
- Improved body control
- Reduced excessive chassis movement
- Greater driver control over suspension behaviour
- Twin-tube construction designed with street comfort in mind
- Vehicle-specific spring and damper calibration
- OE upper-mount compatibility
It is particularly suitable for drivers looking to improve the stance and handling of their Tesla while retaining practical road usability.
TEIN GSAQS-91AA2 Specifications
| Specification | Details |
|---|---|
| Brand | TEIN |
| Product Range | Street Advance Z |
| Part Number | GSAQS-91AA2 |
| Vehicle | Selected Tesla Model 3 / Model Y |
| Drivetrain | Drivetrain: Selected AWD / 4WD applications only |
| Damper Type | Twin Tube |
| Damping Adjustment | 16 Stage |
| Ride Height Adjustment | Threaded spring seat |
| Front Spring Rate | 11 kgf/mm |
| Rear Spring Rate | 11 kgf/mm |
| Springs Included | Yes |
| Upper Mounts | OE / Standard mounts reused |
| Front Upper Mount | STD – not included |
| Rear Upper Mount | STD – not included |
| JAN Code | 4589533493610 |
The JAN code, spring inclusion and STD upper-mount specification are confirmed by TEIN’s own application database.
FAQs
Does TEIN GSAQS-91AA2 fit the Tesla Model 3?
Yes, but only selected variants. TEIN lists GSAQS-91AA2 for compatible AWD/4WD Model 3 applications including the 3L23B Long Range 2021.06–2022.02 and 3L23T Long Range 2022.03–2023.08. Other Model 3 variants can use different TEIN part numbers.
Does GSAQS-91AA2 fit the Tesla Model Y?
Yes, selected Model Y AWD/4WD variants are compatible. TEIN specifically lists YL3YPT Performance 4WD applications, and your TEIN data also shows China-produced Model Y Long Range compatibility.
Is the TEIN Street Advance Z damping adjustable?
Yes. Street Advance Z features 16-level damping force adjustment, allowing the suspension response to be tailored to road conditions and driver preference.
Can I adjust the ride height?
Yes. Street Advance Z uses a threaded spring-seat system allowing the vehicle ride height to be changed within the suitable adjustment range.
What are the spring rates?
The GSAQS-91AA2 setup uses approximately 11 kgf/mm front and 11 kgf/mm rear spring rates.
Are top mounts included?
No. TEIN identifies the upper mounts as STD, meaning replacement upper mounts are not included and the original vehicle mounts are reused.
Is this suspension suitable for daily driving?
Street Advance Z is specifically positioned by TEIN as a street-use suspension system. Its twin-tube construction and adjustable damping allow the setup to be tailored towards comfort or increased handling control.
Should the car be aligned after fitting the coilovers?
Yes. A professional four-wheel alignment is recommended after suspension installation and after the final ride height has been established.
Will GSAQS-91AA2 fit a Tesla Model 3 RWD or Standard Range?
No. Do not assume GSAQS-91AA2 fits the RWD or Standard Range versions. TEIN lists different part numbers for some rear-wheel-drive Model 3 applications. Always confirm the chassis, year and drivetrain before ordering.
Vehicle Fitment
Technical Specification
chassis code and trim specification.
Vehicle Fitment
| Year | Make | Model | Variant / Chassis | Drivetrain | Ride Height Change |
|---|---|---|---|---|---|
| 2021.06–2022.02 | Tesla | Model 3 | Long Range – 3L23B | AWD / 4WD | Front -15 mm / Rear -30 mm |
| 2022.03–2023.08 | Tesla | Model 3 | Long Range – 3L23T | AWD / 4WD | Front -30 mm / Rear -25 mm |
| 2021+ | Tesla | Model 3 | Performance – China-produced vehicles | AWD / 4WD | Front -30 mm / Rear -30 mm |
| 2024+ | Tesla | Model 3 | Performance / Long Range – USA specification | AWD / 4WD | Front -35 mm / Rear -40 mm |
| 2022.06–2025.03 | Tesla | Model Y | Performance – YL3YPT | AWD / 4WD | Front -20 mm / Rear -25 mm |
GSAQS-91AA2 is not suitable for every Tesla Model 3 or Model Y.
Fitment depends on production year, drivetrain, trim and chassis specification.
Please confirm your exact vehicle before ordering.
Delivery & Returns
UK Delivery
We deliver throughout the United Kingdom using reliable courier services. Delivery times vary depending on stock availability, supplier location, product size and destination.
Shipping charges are calculated at checkout where applicable. Larger, heavier, specialist or supplier-direct items may incur additional delivery charges.
Dispatch Times
We aim to dispatch in-stock products as quickly as possible. Some specialist, imported, made-to-order or supplier-direct performance parts may require additional processing time.
If you require a product by a specific date, please contact us before ordering so availability can be checked.
Tracking
Tracking information will be provided where available once your order has been dispatched.
International Delivery
International shipping may be available for selected products and destinations. Import duties, taxes, customs charges and local handling fees are normally the responsibility of the customer unless otherwise stated.
Returns
Please contact us before returning an item. Products should be returned in accordance with our returns policy and in suitable condition where applicable.
Special-order, made-to-order, customised or imported products may be subject to different cancellation and return conditions.
Damaged, Faulty or Incorrect Items
Please inspect your order as soon as it arrives. If an item is damaged, faulty or different from what you ordered, contact us promptly with your order number and clear photographs where relevant.
Vehicle Fitment
It is the customer’s responsibility to confirm product compatibility before installation. If you are unsure, contact us with your vehicle registration or VIN and the product SKU before ordering.
