ISR Performance Pro Series Coilover Kit - Nissan 370Z (Z34) / Infiniti G37 / Q40 / Q60 (IS-PRO-Z34)

Transform the handling of your Z34-platform Nissan or Infiniti with the ISR Performance Pro Series coilover kit. Engineered for the Nissan 370Z, Infiniti G37, Q40, and Q60, the Pro Series delivers meaningful suspension improvements with height adjustability, damping adjustment, and ISR's proven coilover engineering at a competitive price point.

Key Features:

• Complete coilover suspension kit
• Height adjustable design
• Damping adjustable
• High-tensile steel springs
• Includes front and rear coilovers
• All mounting hardware included
• Fits Nissan 370Z and Infiniti G37 / Q40 / Q60 (Z34 platform)
• ISR Performance quality and engineering

Performance Benefits:

• Improved Handling: Reduced body roll and sharper cornering response
• Adjustable Height: Lower centre of gravity for improved dynamics and stance
• Damping Adjustment: Tune ride quality between street comfort and performance
• Broad Fitment: Covers the full Z34 platform family
• Complete Kit: Everything needed for a full suspension upgrade
• Value: Pro Series performance at an accessible price point

Specifications:

• Brand: ISR Performance
• Part Number: IS-PRO-Z34
• Product: Pro Series Coilover Kit
• Series: Pro Series
• Height Adjustment: Yes (full-length adjustable)
• Damping Adjustment: Yes
• Spring Type: High-tensile steel
• Barcode: IS-PRO-Z34

Fitment Information:

• Nissan 370Z (Z34) - 2009+
• Infiniti G37 Coupe / Sedan / Convertible (V36)
• Infiniti Q40 (V36)
• Infiniti Q60 Coupe / Convertible (V36)
• Note: All variants share the Z34/V36 FM platform - verify your specific model before ordering
• Installation: Professional installation recommended

What's Included:

• ISR Performance Pro Series coilovers (front pair)
• ISR Performance Pro Series coilovers (rear pair)
• Mounting hardware
• Adjustment wrenches
• Installation instructions

Installation Notes:

• Professional installation recommended
• Remove factory suspension components
• Install ISR Pro Series coilovers using included hardware
• Set initial ride height conservatively
• Set initial damping at mid-range and adjust from there
• Torque all fasteners to manufacturer specifications
• Alignment required after installation
• Allow suspension to settle before final height adjustment
• Re-check alignment after settling period

ISR Performance Pro Series:

The Pro Series is ISR Performance's core coilover offering, designed to deliver genuine suspension improvement over the factory setup at an accessible price point. The Pro Series provides the fundamental features enthusiasts need - height adjustability and damping adjustment - in a well-built package that represents strong value for the Z34 platform. For 370Z and G37 owners looking to improve handling and stance without the premium price of top-tier coilover brands, the ISR Pro Series is a compelling choice.

Z34 Platform Coverage - 370Z, G37, Q40, Q60:

The Nissan 370Z (Z34) and Infiniti G37/Q40/Q60 (V36) share the same FM platform, meaning the ISR Pro Series coilover kit fits the full family of Z34-based vehicles. The 370Z is the dedicated sports car variant, while the G37 (and its successors Q40 and Q60) are the luxury coupe, sedan, and convertible variants. All share the same fundamental suspension architecture, making the IS-PRO-Z34 a versatile kit across the platform. Whether you're building a track-focused 370Z or improving the handling of a daily-driven G37, the ISR Pro Series delivers the same core suspension upgrade.

Height Adjustability:

The full-length height adjustment allows you to set your preferred ride height, lowering the vehicle's centre of gravity for improved handling dynamics and achieving your desired stance. Lowering the 370Z or G37 reduces body roll and improves cornering composure by bringing the centre of gravity closer to the ground. The full-length adjustment design allows independent adjustment of ride height and spring preload, providing more flexibility than sleeve-only adjustment designs. Set height conservatively initially and allow the suspension to settle before making final adjustments.

Damping Adjustment:

The damping adjustment allows you to tune the suspension between softer and firmer settings to match your driving style and road conditions. Softer settings provide more compliance for daily driving comfort, while firmer settings improve body control for spirited driving and track use. Starting at the mid-range setting and adjusting from there is recommended. The 370Z and G37 respond well to damping changes - take time to explore the adjustment range to find the ideal setting for your specific use.

Alignment After Installation:

Professional alignment is essential after installing coilovers on the 370Z or G37. Changing ride height affects camber, toe, and caster settings, and an improper alignment can significantly degrade handling and cause uneven tyre wear. The 370Z and G37 have adjustable suspension geometry that allows for meaningful alignment changes, making it worthwhile to invest in a quality alignment from a shop familiar with the platform. For track-focused builds, consider adding adjustable camber arms and toe links to maximize alignment flexibility at lower ride heights.

Why ISR Performance?

ISR Performance is a respected manufacturer of performance suspension components, known for delivering quality coilovers at competitive price points. Their Pro Series is trusted by 370Z and G37 enthusiasts worldwide for its reliable performance, correct fitment, and genuine handling improvements. ISR Performance's focus on the Z34 platform ensures their coilovers are engineered to the correct specifications for reliable, long-term performance.

Perfect For:

• Nissan 370Z owners seeking coilover suspension upgrade
• Infiniti G37 / Q40 / Q60 owners wanting improved handling and stance
• Street and occasional track day Z34 platform builds
• Enthusiasts seeking quality coilovers at an accessible price point
• Anyone seeking ISR Performance Pro Series quality for their Z34/V36 platform

Perfect For: Nissan 370Z and Infiniti G37/Q40/Q60 owners seeking ISR Performance Pro Series coilovers for improved handling, adjustable height, and damping adjustment on the Z34/V36 platform.

Pro Tip: After installation and alignment, consider adding adjustable rear toe links and camber arms - they unlock significantly more alignment flexibility at lower ride heights and are a popular pairing with coilovers on the Z34 platform.

Complete Kit: Front and rear coilovers. Height and damping adjustable. Fits 370Z, G37, Q40, Q60. Alignment required after installation. Professional installation recommended.

Upgrade your 370Z or G37's handling with ISR Performance Pro Series coilovers - height adjustable, damping adjustable, complete kit, Z34 platform fitment.