Tein Flex Z Coilover Damper Kit – 2003-2008 Nissan 350Z (Z33) / 2003-2007 Infiniti G35 Coupe (V35)

The Tein Flex Z Coupe is the coupe-specific variant of Tein's benchmark street performance coilover kit for the Nissan 350Z and Infiniti G35 — a fully adjustable, monotube-style damper system engineered and validated for the coupe body style of the Z33/V35 platform. With 16-way damping force adjustment, independent ride height adjustment via the lower bracket, and full compatibility with Tein's EDFC Active Pro electronic damping controller, the Flex Z gives 350Z and G35 Coupe owners the tools to dial in their suspension for any driving environment — from daily commuting to canyon runs to weekend track days. Purpose-engineered for the coupe's specific suspension geometry and chassis architecture, this is the correct Flex Z application for 350Z and G35 Coupe owners. A complete, engineered suspension solution for one of the most capable and tuneable Japanese sports car platforms of its generation.

Key Features:

• Coupe-specific fitment — engineered and validated specifically for the coupe body style of the Nissan 350Z (Z33) and Infiniti G35 (V35) — correct suspension geometry and damper stroke for the coupe chassis
• 16-way damping force adjustment — 16 individually selectable damping force settings allow precise tuning of ride and handling character from comfort-oriented street settings to firm track-focused configurations
• Height adjustable via lower bracket — ride height is adjusted independently of spring preload via the lower bracket, maintaining correct spring geometry and damper stroke across the full height adjustment range
• Monotube damper design — monotube construction provides more consistent damping performance and better heat dissipation than twin-tube designs, particularly under sustained performance driving conditions
• EDFC compatible — fully compatible with Tein's EDFC Active Pro electronic damping force controller for in-cabin, on-the-fly damping adjustment without manual access to the damper adjustment knobs
• Tein TRAC technology — Tein's proprietary Tension Ratio Adjust Construction optimizes the relationship between spring rate and damper force for balanced, predictable handling across the full suspension travel range
• Tein quality and warranty — backed by Tein's manufacturer warranty and supported by Tein's global service network

Performance Benefits:

• 16-Way Damping Adjustment: The Flex Z's 16-way damping adjustment gives 350Z and G35 Coupe owners genuine control over their suspension's response character — softer settings absorb road imperfections and reduce fatigue on daily driving routes, while firmer settings reduce body roll, improve turn-in response, and sharpen the chassis feedback that makes the Z33/V35 coupe so rewarding to drive at the limit. The ability to adjust damping without tools (via the top-mounted adjustment knob) means settings can be changed quickly between driving environments
• Ride Height Adjustment: Lower bracket height adjustment allows the 350Z or G35 Coupe to be set at the ideal ride height for the owner's combination of aesthetic preference, clearance requirements, and handling goals — without compromising spring preload or damper stroke. Proper ride height adjustment lowers the centre of gravity, reduces body roll, and improves the visual stance of the Z33/V35 coupe chassis
• Improved Handling Precision: The Flex Z's stiffer spring rates and optimized damper tuning reduce body roll, improve turn-in response, and sharpen the handling balance of the 350Z and G35 Coupe compared to the factory suspension — delivering a more connected, confidence-inspiring driving experience on both road and track
• Monotube Damper Consistency: Monotube damper construction separates the oil and gas chambers, eliminating the aeration and fade that can affect twin-tube dampers under sustained performance driving. The result is more consistent damping force delivery across extended driving sessions — particularly relevant for track use where damper temperatures rise significantly
• EDFC Integration: Tein's EDFC Active Pro compatibility transforms the Flex Z into an electronically controlled suspension system — allowing damping force to be adjusted from the driver's seat via a dashboard-mounted controller, or automatically via GPS-based speed sensing. For drivers who want the convenience of electronic adjustment without the cost of a full active suspension system, EDFC integration is a compelling upgrade path

Specifications:

• Brand: Tein
• Part Number: VSP26-CUAA3-C
• Damper Type: Monotube
• Damping Adjustment: 16-way
• Height Adjustment: Lower bracket (independent of spring preload)
• EDFC Compatible: Yes (EDFC Active Pro)
• Body Style: Coupe specific
• Spring Rate (Front/Rear): Refer to Tein product documentation for application-specific spring rates
• Application: 2003–2008 Nissan 350Z Coupe (Z33) / 2003–2007 Infiniti G35 Coupe (V35)

Fitment Information:

• 2003–2008 Nissan 350Z Coupe (Z33) — all coupe trim levels
• 2003–2007 Infiniti G35 Coupe (V35) — coupe body style
• Important: This is the coupe-specific SKU (VSP26-CUAA3-C). It is not interchangeable with the sedan or roadster variants. Verify your body style before ordering — G35 sedan and 350Z roadster owners require a different application.
• Note: Confirm compatibility with your wheel and tyre package — lowered ride height may require wheel spacers or arch rolling depending on offset and tyre width.
• Installation: Professional installation by an experienced suspension technician strongly recommended. A four-wheel alignment is required after installation.

What's Included:

• Tein Flex Z coilover damper kit — complete front and rear set, coupe fitment (VSP26-CUAA3-C)
• All required hardware for installation
• Tein adjustment spanner wrench

Installation Notes:

• Professional installation by an experienced suspension technician strongly recommended
• A four-wheel alignment is mandatory after installation — do not drive at speed before alignment is completed
• Set initial damping to a mid-range setting (8 of 16) and adjust from there based on driving feel and preference
• Check all fastener torque after the first 500km of driving and re-torque as needed
• Inspect coilover hardware and fasteners at each service interval
• If installing EDFC, route wiring carefully to avoid heat sources and moving components

Why Upgrade to Coilovers?

The factory Nissan 350Z and Infiniti G35 Coupe suspension is a capable starting point — but it is tuned for a broad range of drivers and driving conditions, with ride height, spring rates, and damper tuning that prioritize comfort and compliance over outright handling performance. For drivers who want to extract the full potential of the Z33/V35 coupe chassis — whether on a canyon road, a track day, or simply a more engaging daily drive — a quality coilover system like the Tein Flex Z delivers the adjustability, spring rate, and damper control that the factory suspension cannot provide. The ability to set ride height, adjust damping force, and tune the suspension to the driver's specific preferences transforms the 350Z and G35 Coupe from a capable sports car into a genuinely driver-focused machine.

The Nissan 350Z / Infiniti G35 Coupe Platform:

The Nissan 350Z (Z33) and Infiniti G35 Coupe (V35) share one of the most celebrated sports car platforms of the 2000s — a 3.5-litre VQ35DE V6, a balanced front-mid engine layout, and a chassis architecture built around double-wishbone front and multi-link rear suspension geometry that responds exceptionally well to coilover upgrades. The coupe body style's stiffer chassis structure and shorter wheelbase make it particularly well-suited to suspension tuning — with well-documented alignment specifications and a strong aftermarket ecosystem supporting everything from street builds to dedicated track cars. Tein's Flex Z is engineered specifically for the coupe's suspension geometry, delivering a suspension solution that respects the Z33/V35 coupe's inherent balance while significantly raising its performance ceiling.

Why Tein?

Tein is one of Japan's most respected and longest-established suspension manufacturers — with over three decades of motorsport development experience informing a product lineup that spans street performance coilovers, race dampers, and electronic suspension control systems. Tein's engineering philosophy emphasizes real-world validation and platform-specific development — their coilover kits are purpose-engineered systems developed for the specific suspension geometry, spring rates, and damper characteristics of each application. For 350Z and G35 Coupe owners who want a coilover system backed by genuine engineering depth and a global service network, Tein is the benchmark choice.

Perfect For:

• 350Z and G35 Coupe owners seeking a meaningful handling upgrade over the factory suspension with genuine ride height and damping adjustability
• Street builds where a lower, more aggressive coupe stance is desired without sacrificing daily drivability
• Track day and autocross builds where reduced body roll, improved turn-in, and consistent damper performance are priorities
• Owners planning an EDFC Active Pro installation who want a coilover system with full electronic damping compatibility
• Complete suspension builds pairing the Flex Z with upgraded sway bars, bushings, and alignment for a comprehensive chassis upgrade

Pro Tip: Pair the Tein Flex Z with an EDFC Active Pro controller for the ability to adjust damping force from the driver's seat — a particularly valuable feature for drivers who use their 350Z or G35 Coupe across multiple environments (street, canyon, track) and want to optimize damping for each without stopping to manually adjust the dampers.

Important Fitment Note: This is the coupe-specific application (VSP26-CUAA3-C). G35 sedan and 350Z roadster owners require a different Tein Flex Z SKU — confirm your body style before ordering. A four-wheel alignment is required after installation. Professional installation strongly recommended.