TEIN · TECHNICAL DATA
Specifications & vehicle fitment
Use the details for your vehicle grade. Production periods and certificate scope apply only to the stated application.
Product overview
- Manufacturer part number
- GSTB4-91AS2
- Product series
- STREET ADVANCE Z
- Product type
- Coilover suspension kit
Specifications & supplied components
- Height adjustment by spring seat
- Yes
- Damping adjustable
- Yes
- Twin-tube construction
- Yes
- Damping adjustment
- Yes, 16 settings
- Ride-height adjustment
- Via spring seats
- Damper construction
- Twin-tube
Approval & application scope
- Approval
- without TÜV certificate, not road approved
Vehicle gradeTOYOTA ALPHARD · AGH30W G, X, S, S A PACKAGE, S C PACKAGE
01/2015 to 12/2017
- make
- TOYOTA
- model
- ALPHARD
- grade
- AGH30W G, X, S, S A PACKAGE, S C PACKAGE
- production period
- 01/2015 to 12/2017
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 2500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -45 mm
- recommended lowering front
- 35–55 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -45 mm
- recommended lowering rear
- 35–55 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA ALPHARD · AGH30W G, X, S, S A PACKAGE, S C PACKAGE
01/2018 to 05/2023
- make
- TOYOTA
- model
- ALPHARD
- grade
- AGH30W G, X, S, S A PACKAGE, S C PACKAGE
- production period
- 01/2018 to 05/2023
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 2500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -40 mm
- recommended lowering front
- 30–50 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -35 mm
- recommended lowering rear
- 29–45 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA ALPHARD · GGH30W SA, SA C PACKAGE, GF, EXECUTIVE LOUNGE
01/2015 to 12/2017
- make
- TOYOTA
- model
- ALPHARD
- grade
- GGH30W SA, SA C PACKAGE, GF, EXECUTIVE LOUNGE
- production period
- 01/2015 to 12/2017
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 3500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -45 mm
- recommended lowering front
- 35–55 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -45 mm
- recommended lowering rear
- 39–55 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA ALPHARD · GGH30W GF, SC, EXECUTIVE LOUNGE, EXECUTIVE LOUNGE S
01/2018 to 05/2023
- make
- TOYOTA
- model
- ALPHARD
- grade
- GGH30W GF, SC, EXECUTIVE LOUNGE, EXECUTIVE LOUNGE S
- production period
- 01/2018 to 05/2023
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 3500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -55 mm
- recommended lowering front
- 45–65 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -45 mm
- recommended lowering rear
- 39–55 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA VELLFIRE · AGH30W Z, Z A EDITION, Z G EDITION, V, X
01/2015 to 12/2017
- make
- TOYOTA
- model
- VELLFIRE
- grade
- AGH30W Z, Z A EDITION, Z G EDITION, V, X
- production period
- 01/2015 to 12/2017
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 2500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -45 mm
- recommended lowering front
- 35–55 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -45 mm
- recommended lowering rear
- 35–55 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA VELLFIRE · AGH30W Z, Z A EDITION, Z G EDITION, V, X
01/2018 to 05/2023
- make
- TOYOTA
- model
- VELLFIRE
- grade
- AGH30W Z, Z A EDITION, Z G EDITION, V, X
- production period
- 01/2018 to 05/2023
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 2500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -40 mm
- recommended lowering front
- 30–50 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -35 mm
- recommended lowering rear
- 29–45 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA VELLFIRE · GGH30W ZA, ZA G EDITION, VL, EXECUTIVE LOUNGE
01/2015 to 12/2017
- make
- TOYOTA
- model
- VELLFIRE
- grade
- GGH30W ZA, ZA G EDITION, VL, EXECUTIVE LOUNGE
- production period
- 01/2015 to 12/2017
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 3500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -45 mm
- recommended lowering front
- 35–55 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -45 mm
- recommended lowering rear
- 39–55 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
Vehicle gradeTOYOTA VELLFIRE · GGH30W ZG, VL, EXECUTIVE LOUNGE, EXECUTIVE LOUNGE Z
01/2018 to 05/2023
- make
- TOYOTA
- model
- VELLFIRE
- grade
- GGH30W ZG, VL, EXECUTIVE LOUNGE, EXECUTIVE LOUNGE Z
- production period
- 01/2018 to 05/2023
- drivetrain
- Front-wheel drive (FWD)
- displacement as listed by TEIN
- 3500 cm³
- spring rate front
- 6 kgf/mm
- standard height change front
- -55 mm
- recommended lowering front
- 45–65 mm
- spring rate rear
- 9 kgf/mm
- standard height change rear
- -45 mm
- recommended lowering rear
- 39–55 mm
- installation notes
- NOT COMPATIBLE WITH VEHICLE EQUIPPED WITH SIDE LIFT-UP SEAT.
EDFC & accessories
- EDFC compatibility
- Components in the following manufacturer applications are available separately. EDFC is not automatically supplied with the suspension kit.
- EDFC application 001
- TOYOTA VELLFIRE AGH30W: Controller EDK04-R6655; GPS EDK07-P8022; Motorkit EDK05-12140
- EDFC application 002
- TOYOTA ALPHARD AGH30W: Controller EDK04-R6655; GPS EDK07-P8022; Motorkit EDK05-12140
- EDFC application 003
- TOYOTA VELLFIRE GGH30W: Controller EDK04-R6655; GPS EDK07-P8022; Motorkit EDK05-12140
- EDFC installation note 001
- Rr : Motor needs to be fitted to damper prior to installation
- EDFC installation note 002
- Rr : Motor needs to be fitted to damper prior to installation
- EDFC installation note 003
- Rr : Motor needs to be fitted to damper prior to installation
- EDFC application 004
- TOYOTA ALPHARD GGH30W: Controller EDK04-R6655; GPS EDK07-P8022; Motorkit EDK05-12140
- EDFC installation note 004
- Rr : Motor needs to be fitted to damper prior to installation
Weight & manufacturer details
- Weight in TEIN list
- 28.6 kg
Description & frequently asked questions
STREET ADVANCE Z – Product features and benefits
-
Adjustable damping: Yes, 16 settings
-
Ride-height adjustment: Via spring seats
-
Damper construction: Twin-tube
Use the adjustment dial to tune damping to your preferred ride. Compression and rebound change together; spring rate stays the same.
Ride height is set through spring-seat position, within the ranges specified for the individual application.
Twin-tube dampers support a suspension setup focused on road comfort.
EDFC application assignments are available for this item. Select the specified controllers, motor kits and accessories separately; they are not automatically included.
The vehicle applications for this item specify ride-height values, spring rates, upper mounts and installation notes.
More about this range STREET ADVANCE Z
TEIN STREET ADVANCE Z – GSTB4-91AS2
TEIN STREET ADVANCE Z, part GSTB4-91AS2. Applications listed for TOYOTA ALPHARD / TOYOTA VELLFIRE. Check chassis, grade, production period and installation notes.
Technical information and application
The technical attributes retain the vehicle-specific figures and installation notes from the manufacturer catalogue. Use only the values for your exact application. Production dates are not necessarily the same as first registration.
Questions about this product
How do I check fitment?
Compare the exact manufacturer part number and the relevant application data. Where vehicle applications are listed, also check chassis code, grade, production period and any equipment exclusions.
Does a vehicle listing confirm road approval?
No. Technical fitment and approval are separate. Any certificate note applies only to its stated scope. Refer to the complete documents for the specific vehicle.
Example image – the actual product may differ from the illustration.
Characteristics & additional product details
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