Tein Street Basis Z Coilover Kit – 2004–2011 Mazda RX-8 (SE3P) | Height Adjustable | Daily-Driver Focused | Improved Stance & Handling | Made in Japan

The Tein Street Basis Z Coilover Kit for the 2004–2011 Mazda RX-8 (SE3P) is a complete height-adjustable coilover suspension system in Tein's Street Basis Z lineup — Tein's entry-level coilover designed for the everyday driver who wants improved stance, improved handling over the factory suspension, and the ability to set a custom ride height, without the complexity or cost of a fully adjustable damper system. The Street Basis Z uses a spring perch height adjustment system with a fixed damper valving calibrated for daily-driver use — a straightforward, reliable coilover solution for RX-8 owners who want a quality Japanese coilover from one of the most respected suspension manufacturers in the world. Tein is one of Japan's most respected suspension manufacturers — a brand with decades of motorsport and performance suspension development experience, manufacturing all products in Japan to exacting quality standards.

Key Features:

• Height adjustable — adjustable ride height via the lower spring perch — set the correct ride height for your specific RX-8 build and driving use within the Street Basis Z's adjustment range
• Street Basis Z — Tein's entry-level coilover lineup — fixed damper valving calibrated for daily-driver use — improved handling and stance over the factory suspension without the complexity of a fully adjustable damper system
• Daily-driver focused — the Street Basis Z's spring rates and damper valving are calibrated for daily-driver use — a meaningful improvement in cornering performance and body roll control over the factory RX-8 suspension while maintaining appropriate ride quality for regular road use
• SE3P specific — engineered specifically for the Mazda RX-8 SE3P's suspension geometry — correct spring rates, damper valving, and mounting dimensions for the SE3P's front MacPherson strut and rear multi-link suspension
• Made in Japan — manufactured by Tein in Japan to exacting quality standards — correct for the RX-8's suspension geometry and daily-driver use requirements
• Tein quality — manufactured by Tein, one of Japan's most respected suspension manufacturers

Mazda RX-8 SE3P — Platform Context:

The 2004–2011 Mazda RX-8 (SE3P) is one of the most unique and celebrated sports cars of the modern era — a front-mid engine, rear-wheel-drive sports car powered by Mazda's naturally aspirated Renesis 13B-MSP rotary engine, with a 50/50 weight distribution, a multi-link rear suspension, and a dedicated enthusiast community. The RX-8's balanced chassis and rear-wheel-drive layout make it an excellent platform for suspension upgrades — the factory suspension is well-engineered but benefits from the improved spring rates, reduced body roll, and lowered ride height of a quality coilover system. The Tein Street Basis Z is the correct entry-level coilover choice for RX-8 owners who want improved handling and stance without the cost of a fully adjustable system.

Specifications:

• Brand: Tein
• Part Number: TEINGSM56-81SS2
• Barcode: GSM56-81SS2
• Series: Street Basis Z
• Adjustment: Ride height (spring perch)
• Damping: Fixed
• Application: 2004–2011 Mazda RX-8 — SE3P
• Weight: 51.6 lbs (shipping weight — complete kit)

Fitment Information:

• 2004–2011 Mazda RX-8 — SE3P — all variants
• Verify your specific RX-8 model year before ordering — confirm that TEINGSM56-81SS2 is the correct Street Basis Z kit for your specific SE3P
• Note: Professional installation by an experienced suspension specialist strongly recommended — coilover installation requires correct spring perch height setting, correct top mount installation, and a four-wheel alignment after installation. The RX-8's rotary engine requires careful attention to oil management — ensure the vehicle is level and correctly supported during suspension work.

What's Included:

• Tein Street Basis Z coilover kit — complete front and rear set — 2004–2011 Mazda RX-8 SE3P (TEINGSM56-81SS2)
• All required hardware and top mounts
• Refer to Tein's product documentation for complete kit contents and installation instructions

Installation Notes:

• Professional installation by an experienced suspension specialist strongly recommended
• Set the spring perch ride height before installation — refer to Tein's installation documentation for the recommended ride height range and adjustment procedure
• A four-wheel alignment is required after installation — do not drive at speed before alignment is performed
• Re-check all fastener torques after the first 500–1,000 km of driving following installation — suspension components can settle after initial use
• Re-check ride height after the first 500–1,000 km — springs may settle slightly after initial use and ride height adjustment may be required
• The RX-8's rotary engine requires the vehicle to be correctly supported and level during suspension work — follow correct vehicle support procedures during installation

Why Tein?

Tein is one of Japan's most respected suspension manufacturers — a brand with decades of motorsport and performance suspension development experience, manufacturing all products in Japan to exacting quality standards. Tein's Street Basis Z lineup provides a quality, application-specific coilover solution for owners who want improved stance and handling without the complexity or cost of a fully adjustable system. For RX-8 SE3P owners who want a quality Japanese coilover from one of the most trusted suspension brands in the JDM performance market, TEINGSM56-81SS2 is the correct choice.

Perfect For:

• 2004–2011 Mazda RX-8 (SE3P) owners who want Tein's Street Basis Z height-adjustable coilover kit for improved stance, reduced body roll, and improved handling over the factory suspension — a daily-driver-focused coilover solution from one of Japan's most respected suspension manufacturers
• RX-8 owners who want a quality entry-level coilover with height adjustability and fixed damping calibrated for daily-driver use — the correct choice for owners who want improved suspension performance without the complexity of a fully adjustable damper system
• SE3P builds where Tein's application-specific spring rates and damper valving provide a correct, well-engineered coilover solution for the RX-8's unique front-mid engine, rear-wheel-drive chassis and multi-link rear suspension

Note: Verify SE3P model year before ordering. Four-wheel alignment required after installation. Re-check torques and ride height after first 500–1,000 km. Professional suspension specialist installation strongly recommended.