BLOX Racing Street Series II Coilovers – 2003-2008 Nissan 350Z / Infiniti G35

Get the stance and handling upgrade your Z33 or V35 deserves with the BLOX Racing Street Series II Coilovers. Engineered for the 2003–2008 Nissan 350Z and Infiniti G35, these coilovers deliver a meaningful improvement in ride quality, body control, and adjustability over the factory suspension — at a price point that makes the upgrade accessible. The non-adjustable damping design keeps setup simple while delivering a well-tuned street-focused ride.

Key Features:

• Full coilover system — complete front and rear set for the 350Z / G35 platform
• Height adjustable — independent spring perch adjustment for precise ride height tuning
• Non-adjustable damping — factory-tuned damping optimized for street use; simplified setup with no adjustment required
• Monotube shock design for improved heat dissipation and consistent damping
• High-quality construction with corrosion-resistant coating
• BLOX Racing engineering — application-specific tuning for the Z33/V35 chassis
• Street Series II — BLOX’s proven street-focused coilover platform

Performance Benefits:

• Improved Body Control: Significantly reduced body roll and improved cornering composure versus the factory suspension
• Height Adjustability: Lower your 350Z or G35 to your preferred stance without sacrificing ride quality
• Simplified Setup: Non-adjustable damping means no guesswork — the damping is pre-tuned for street use right out of the box
• Consistent Damping: Monotube design maintains damping performance under heat, preventing fade during spirited driving
• Improved Steering Feel: Reduced suspension compliance translates to more direct, connected steering response
• Accessible Performance: Street Series II delivers genuine coilover performance at a price point well below premium adjustable options

Specifications:

• Brand: BLOX Racing
• Part Number: BXSS-02705
• Series: Street Series II
• Damping: Non-adjustable (factory-tuned for street use)
• Height Adjustment: Yes — independent spring perch
• Shock Design: Monotube
• Kit: Full set (front and rear)
• Application: Street / Occasional spirited driving

Fitment Information:

• 2003–2008 Nissan 350Z (Z33)
• 2003–2008 Infiniti G35 (V35) — Coupe and Sedan
• Note: Verify your vehicle year and model before ordering
• Installation: Professional installation strongly recommended
• Alignment Required: Full alignment required after installation

What’s Included:

• BLOX Racing Street Series II coilovers — complete front and rear set
• Adjustment wrenches
• Installation hardware
• Installation instructions

Installation Notes:

• Professional installation strongly recommended
• Full alignment required after installation
• Test fit and set ride height before final torque
• Allow suspension to settle before final height adjustment
• Re-torque all fasteners after first 500 km
• Check alignment after settling period

Non-Adjustable Damping — Why It Works:

Non-adjustable damping gets a bad reputation in enthusiast circles, but for street-focused builds it’s often the smarter choice. BLOX has pre-tuned the Street Series II damping specifically for the Z33/V35 chassis — meaning the valving is optimized for the spring rates and intended use right out of the box. There’s no risk of setting damping incorrectly, no adjustment fatigue, and no compromise from a poorly chosen setting. For drivers who want a clean, capable street coilover without the complexity of damping adjustment, the Street Series II delivers exactly that.

350Z / G35 Platform:

The 2003–2008 Nissan 350Z (Z33) and Infiniti G35 (V35) share the FM platform — a rear-wheel-drive architecture with a front-mid engine layout that gives both cars exceptional balance and handling potential. The VQ35DE and VQ35HR engines are proven, free-revving V6s that respond well to supporting modifications. Suspension upgrades are one of the highest-impact changes you can make to either platform, transforming the factory comfort-biased setup into something genuinely engaging. BLOX Street Series II coilovers are the accessible entry point to that transformation.

Why BLOX Racing?

BLOX Racing has been producing performance parts for import enthusiasts since 1999. Their Street Series coilover lineup is engineered for real-world street use — not just spec sheets — with application-specific tuning that delivers a balanced ride without requiring a suspension engineering degree to set up. For 350Z and G35 owners looking for a genuine upgrade at a competitive price, BLOX Street Series II is a proven choice.

Perfect For:

• 2003–2008 Nissan 350Z and Infiniti G35 owners seeking a clean stance and improved handling
• Street builds wanting a simplified coilover setup without damping adjustment complexity
• First-time coilover buyers who want a well-tuned, plug-and-play suspension upgrade
• Enthusiasts upgrading from worn factory shocks and springs
• Builds prioritizing ride quality and daily drivability alongside improved body control

Pro Tip: Start with the ride height at a conservative drop (25–30mm) and adjust from there after the suspension settles. Full alignment is essential — don’t skip it.

Note: Full alignment required after installation. Allow 500–1,000 km for the suspension to settle before making final height adjustments.