Tein Flex Z Coilover Kit - 1991-2006 Acura NSX (NA1 / NA2)

Sharpen the handling of Honda's legendary supercar with the Tein Flex Z coilover kit for the Acura NSX. Featuring height adjustability, 16-way damping adjustment, and Tein's proven engineering, the Flex Z delivers meaningful suspension improvements over the factory setup while preserving the NSX's renowned balance and mid-engine character.

Key Features:

• Complete coilover suspension kit
• Height adjustable design
• 16-way damping adjustment
• Twin-tube damper construction
• High-tensile steel springs
• Includes front and rear coilovers
• All mounting hardware included
• Engineered for NSX mid-engine layout
• Tein quality and engineering

Performance Benefits:

• Improved Handling: Reduced body roll and sharper cornering response
• Adjustable Height: Lower centre of gravity for improved dynamics
• 16-Way Damping: Tune ride quality from street comfort to spirited driving
• Preserved Balance: Engineered to maintain the NSX's legendary handling balance
• Quality Construction: Tein-engineered for long service life
• Complete Kit: Everything needed for a full suspension upgrade

Specifications:

• Brand: Tein
• Part Number: VSH14-C1SA3-C
• Product: Flex Z Coilover Kit
• Series: Flex Z
• Damper Type: Twin-tube
• Damping Adjustment: 16-way
• Height Adjustment: Yes (full-length adjustable)
• Spring Type: High-tensile steel
• Weight: 62.6 lbs (complete kit)
• Barcode: VSH14-C1SA3-C

Fitment Information:

• 1991-2005 Acura NSX (NA1) - Original NSX with C30A / C32B engine
• 2002-2006 Acura NSX (NA2) - Updated NSX-T with C32B engine and revised suspension
• Note: Verify your chassis code (NA1 or NA2) before ordering
• Note: Mid-engine, rear-wheel-drive layout - verify front and rear fitment
• Installation: Professional installation strongly recommended

What's Included:

• Tein Flex Z coilovers (front pair)
• Tein Flex Z coilovers (rear pair)
• Mounting hardware
• Adjustment wrenches
• Installation instructions

Installation Notes:

• Professional installation strongly recommended - NSX suspension is complex
• Remove factory suspension components carefully
• Install Tein coilovers using included hardware
• Set initial ride height conservatively
• Set initial damping at mid-range (8 of 16)
• Torque all fasteners to manufacturer specifications
• Alignment required after installation - NSX alignment is critical for handling balance
• Allow suspension to settle before final height adjustment
• Re-check alignment after settling period

Flex Z for the Acura NSX - Respecting a Legend:

The Acura NSX is one of the most celebrated sports cars ever produced, renowned for its exceptional handling balance, mid-engine layout, and driver-focused engineering. Ayrton Senna famously contributed to the NSX's development, and the car's handling precision set a benchmark that influenced sports car design for decades. Upgrading the NSX's suspension requires careful consideration - the goal is to enhance the car's already exceptional dynamics without disrupting the delicate balance that makes the NSX special. The Tein Flex Z is engineered to improve upon the factory suspension while respecting the NSX's fundamental character.

NA1 vs. NA2 Chassis:

The NSX was produced in two main chassis variants. The NA1 (1991-2001) is the original NSX, available in both coupe and targa (NSX-T) configurations, powered by the C30A (3.0L VTEC V6) or C32B (3.2L VTEC V6, from 1997). The NA2 (2002-2006) is the updated NSX with the C32B engine, revised suspension geometry, and a 6-speed manual transmission as standard. The suspension geometry differs between NA1 and NA2, so always verify your chassis code before ordering. The Tein VSH14-C1SA3-C is designed to fit both NA1 and NA2 variants.

Mid-Engine Suspension Considerations:

The NSX's mid-engine, rear-wheel-drive layout creates unique suspension requirements compared to front-engine vehicles. The weight distribution is biased toward the rear, and the suspension geometry is carefully tuned to provide the NSX's characteristic balance and agility. When lowering the NSX, it's important to maintain appropriate suspension geometry to preserve the car's handling balance. The Tein Flex Z's height adjustment range is designed with the NSX's geometry in mind, providing meaningful lowering options while maintaining proper suspension operation.

16-Way Damping Adjustment:

The 16-way damping adjustment allows precise tuning of the suspension between soft and firm settings. Starting at the mid-range setting (8 of 16) is recommended, adjusting from there based on your driving style and road conditions. The NSX's lightweight construction and mid-engine balance mean it responds very sensitively to damping changes - small adjustments can have a noticeable effect on ride quality and handling. Take time to explore the adjustment range to find the ideal setting for your specific use.

Twin-Tube Damper Construction:

The Flex Z uses twin-tube damper construction, which provides a smooth, compliant ride quality well-suited for street use. While twin-tube designs are not as performance-focused as mono-tube designs (used in Tein's higher-tier Street Advance Z), they provide excellent value and reliability for street-driven NSX builds. The twin-tube construction is appropriate for the Flex Z's positioning as an accessible entry into quality coilover suspension for the NSX.

Preserving the NSX's Alignment:

Professional alignment is critical after installing coilovers on the NSX. The NSX's suspension geometry is precisely engineered for optimal handling, and any changes to ride height affect camber, toe, and caster settings. An improper alignment can significantly degrade the NSX's handling and cause uneven tyre wear. Seek an alignment specialist familiar with the NSX platform, and consider corner weighting for track-focused builds to maximize the car's inherent balance.

Why Tein?

Tein is a world-renowned manufacturer of suspension components, trusted by enthusiasts and professional racers worldwide. Their experience with Honda and Acura platforms, including the NSX, ensures their coilovers are engineered to the correct specifications for reliable, high-performance operation. Tein's commitment to quality across all product lines, including the entry-level Flex Z, ensures you're getting genuine performance improvement backed by decades of suspension engineering expertise.

Installation Tips:

• Professional installation and alignment strongly recommended for NSX
• Seek an alignment specialist familiar with the NSX platform
• Start damping at mid-range (8 of 16) - NSX is sensitive to damping changes
• Set initial height conservatively - can adjust after settling
• Allow 200-300 km for suspension to settle before final adjustment
• Consider corner weighting for track-focused builds
• Document factory alignment settings before removal for reference

Perfect For:

• 1991-2006 Acura NSX (NA1/NA2) owners seeking coilover suspension upgrade
• NSX builds wanting improved handling and adjustable stance
• Street-driven NSX owners wanting quality Tein suspension
• NSX enthusiasts seeking height and damping adjustability
• Anyone seeking Tein quality for their legendary Acura NSX

Perfect For: 1991-2006 Acura NSX (NA1/NA2) owners seeking Tein Flex Z coilovers for improved handling, adjustable height, and 16-way damping on Honda's legendary mid-engine supercar.

Pro Tip: Document your factory alignment settings before removal and seek an NSX-experienced alignment specialist after installation - proper alignment is critical to preserving the NSX's legendary handling balance.

Complete Kit: Front and rear coilovers. 16-way damping. Height adjustable. Twin-tube construction. Fits NA1 and NA2. Professional installation and alignment required.

Enhance your NSX's legendary handling with Tein Flex Z coilovers - 16-way damping, height adjustable, engineered for the NA1/NA2 mid-engine layout.