Product Overview
TEIN S.Tech Lowering Springs Subaru Forester SG5 2002–2007
TEIN S.Tech Lowering Springs Subaru Forester SG5 are designed for drivers who want a sportier stance, improved road handling and dependable Japanese suspension engineering. The genuine TEIN S.Tech spring kit, part number SKS50-S3B00, offers approximately 55mm of lowering at both the front and rear on the manufacturer’s tested SG5 application.
Whether you are upgrading your Forester XT for a more purposeful road appearance or replacing the factory springs as part of a suspension improvement project, TEIN S.Tech lowering springs offer an effective solution for compatible Subaru Forester SG5 models.
Developed with matched spring rates and durable materials, the S.Tech range provides a practical upgrade for enthusiasts looking to improve vehicle stance and cornering response without moving to a complete adjustable coilover system.
Why Choose TEIN S.Tech Lowering Springs?
1. Lower Your Subaru Forester by Approximately 55mm
The TEIN SKS50-S3B00 spring kit provides a manufacturer-listed lowering amount of approximately 55mm at the front and rear of the Subaru Forester SG5.
This significant reduction in ride height creates a more aggressive road-focused appearance and lowers the vehicle’s centre of gravity.
Actual lowering results can vary with vehicle specification, existing suspension condition and installed components.
2. Improved Road Handling and Body Control
TEIN S.Tech lowering springs are designed to provide improved handling characteristics compared with standard suspension springs.
The reduced ride height can help limit excessive body movement during cornering, while the matched spring rates provide more controlled suspension response.
Correct installation, suitable shock absorbers and accurate wheel alignment are essential for achieving the intended results.
3. Progressive Spring Rate Design
The S.Tech range features progressive spring technology designed to balance everyday road comfort with responsive handling.
This makes the springs suitable for owners who want a sportier driving feel while retaining a conventional spring-and-damper suspension arrangement.
4. High-Quality Chrome-Vanadium Construction
TEIN S.Tech springs use SAE9254V chrome-vanadium steel, selected for its strength, durability and resistance to fatigue.
The springs also feature TEIN’s distinctive green powder-coated finish, providing corrosion protection and a recognisable performance appearance.
5. Compatible with Suitable Original-Style Dampers
These lowering springs are designed for installation with compatible original or replacement shock absorbers.
Because the SG5 application involves substantial lowering, inspect the condition, travel and suitability of the existing dampers before installation. Worn or unsuitable dampers should be replaced with an appropriate setup.
TEIN SKS50-S3B00 Spring Rates
- Front spring rate: 3.0 kg/mm (approximately 168 lb/in)
- Rear spring rate: 3.6 kg/mm (approximately 202 lb/in)
- Front spring length: 274mm
- Rear spring length: 325mm
- Front lowering: approximately 55mm on SG5
- Rear lowering: approximately 55mm on SG5
Subaru Forester SG5 Vehicle Compatibility
The TEIN S.Tech SKS50-S3B00 lowering spring kit is manufacturer-listed for the following Subaru Forester SG5 applications:
- Subaru Forester SG5 2.0 X – 2002–2007
- Subaru Forester SG5 2.0 X20 – 2002–2007
- Subaru Forester SG5 2.0 XT – 2002–2007
These applications refer to TEIN’s Japanese-market SG5 catalogue. The kit was tested on a turbo model and is not compatible with vehicles equipped with self-levelling suspension.
Important SG9 STI Compatibility Warning
Although TEIN lists SKS50-S3B00 against the Subaru Forester SG9 STI Version, it does not guarantee the result and explicitly warns that the manufacturer’s warranty is void for this application.
TEIN records approximately 25mm front and 30mm rear lowering for the SG9 STI, compared with 55mm front and rear on the SG5.
For this reason, we recommend confirming an appropriate manufacturer-supported suspension solution before ordering for an SG9 STI.
Do You Need a Wheel Alignment After Lowering Your Forester?
Yes. Lowering your Subaru Forester changes suspension geometry and may affect steering behaviour, tyre wear and road handling.
We recommend professional installation followed by a complete wheel alignment.
Learn more in our Wheel Alignment Guide: Camber, Toe and Caster Explained.
Shop Genuine TEIN Suspension Parts in the UK
At Performance Car Parts UK, we offer suspension and performance upgrades for Japanese and European vehicles.
Explore our TEIN suspension collection to discover more genuine Japanese suspension components.
Looking for lowering springs for a newer Forester? View our TEIN S.Tech Subaru Forester SH5 Lowering Spring Kit.
For technical specifications and application guidance, consult the Official TEIN UK Subaru Forester Spring Catalogue.
Order TEIN S.Tech Subaru Forester SG5 Lowering Springs
Give your Subaru Forester SG5 a lower, more purposeful stance with the TEIN S.Tech SKS50-S3B00 Lowering Spring Kit.
With matched spring rates, durable Japanese construction and application-specific lowering specifications, these springs provide a practical suspension upgrade for compatible Forester SG5 models.
Order your genuine TEIN S.Tech lowering springs from Performance Car Parts UK today.
Always confirm vehicle fitment, suspension configuration and any manufacturer restrictions before installation.
