ST Suspensions XTA Adjustable Coilover Kit – 2003–2008 Infiniti G35 Coupe / Nissan 350Z (Z33) | 3.5L

Unlock maximum performance from your 2003–2008 Infiniti G35 Coupe or Nissan 350Z with the ST Suspensions XTA Adjustable Coilover Kit — ST's premium adjustable coilover system delivering precise ride height adjustment, 16-click rebound damping tuning, and camber-adjustable front top mounts on the shared FM platform. Whether your preference is comfort, performance, or something in between, ST XTA puts the finer details of your driving dynamics in your hands.

Key Features

• 16-Click Adjustable Rebound Damping: 16 distinct clicks of adjustable rebound damping allow you to refine driving dynamics with a simple turn of the adjustment knob — from comfort-oriented street settings to performance-focused track configurations. Each kit ships preset to ST's factory-recommended damper settings, tested on KW shock dynos before leaving the factory. A detailed damper setup manual is included for easy reference
• Linear Race Spring System: All ST XTA systems include a linear race spring system — consistent, predictable spring behavior across the full compression range for precise, confidence-inspiring handling on both street and track
• Camber-Adjustable Aluminum Unibal Top Mounts: Aluminum unibal camber-adjustable top mounts at the front axle allow you to dial in aggressive wheel and tire fitment and maximize the tire's contact patch for fast corners and maximum grip scenarios — a critical feature for track use and aggressive street builds on the G35/350Z platform
• Polyamide Composite Spring Perch – Corrosion-Free Height Adjustment: Adjustable spring perch manufactured from durable, friction-optimized polyamide composite material with a stainless steel insert — prevents corrosion between the strut and perch for long-lasting, smooth ride height adjustability. The stainless steel insert provides strength and confidence
• Galvanized Zinc-Coated Steel Struts: Galvanized zinc-coated steel struts optimize corrosion protection for long-lasting use in all weather conditions
• Dust Protection & Sealing System: Dust protection system prevents dirt and particulate from contacting the hardened chrome piston rod or entering the valve packs. Reinforced with a multi-layered pressure-resistant sealing package, mono block guide system, and low-friction piston band inside the pressure-resistant internal damper housing
• FM Platform Fitment – G35 Coupe & 350Z: Engineered for the shared Nissan FM platform — fits both the 2003–2008 Infiniti G35 Coupe (V35) and 2003–2008 Nissan 350Z (Z33) with the VQ35DE 3.5L V6

Specifications

• Type: Coilover Kit (Complete Set)
• Series: XTA (Adjustable)
• Damping: 16-Click Adjustable Rebound
• Springs: Linear Race Spring System
• Top Mounts: Aluminum Unibal — Camber Adjustable (Front)
• Spring Perch: Polyamide Composite with Stainless Steel Insert
• Strut Finish: Galvanized Zinc-Coated Steel
• Engine: VQ35DE 3.5L V6
• Fitment: 2003–2008 Infiniti G35 Coupe (V35) / 2003–2008 Nissan 350Z (Z33)
• Part Number: 18285802

Note: Coupe fitment only — verify your specific G35 body style (coupe vs sedan) before ordering. A full alignment including camber adjustment is required after installation — the camber-adjustable top mounts allow for precise alignment setup. Corner balancing is recommended to maximize the XTA's performance potential. Professional installation by an experienced suspension shop is strongly recommended.