STILLEN 2003-2009 Nissan 350Z [Z33] / 2003-2007 Infiniti G35 Adjustable Rear Sway Bar Kit - 304352

The STILLEN Adjustable Rear Sway Bar Kit (304352) is engineered to dramatically improve the handling balance and cornering performance of the 2003–2009 Nissan 350Z (Z33) and 2003–2007 Infiniti G35. When paired with a front sway bar—or even installed on its own—this rear sway bar helps maximize tire contact with the road while reducing excessive body roll.

Rear sway bars play a crucial role in vehicle balance, particularly during spirited driving, canyon runs, or track use. Factory rear sway bars are often undersized for performance driving, limiting traction and responsiveness. STILLEN addresses this with a high-strength aircraft-grade steel sway bar designed to deliver increased stiffness without compromising durability.

This rear sway bar features a 3-way adjustable design, allowing drivers to fine-tune rear-end stiffness based on driving style and suspension setup. Adjustment settings offer approximately 37% to 70% more stiffness than stock, making it easy to dial in neutral handling and improved corner exit traction.

Manufactured in-house by STILLEN, this sway bar benefits from over 20 years of sway bar design and production experience, including private-label manufacturing for some of the largest suspension brands in the industry. Each bar is finished in a durable powder-coated finish to resist corrosion and maintain a clean, performance-focused appearance.

All necessary mounting hardware is included, along with installation instructions when required.

Fitment:

• 2003–2009 Nissan 350Z (Z33)
• 2003–2007 Infiniti G35
• Rear-Wheel Drive (RWD) models only
• Not compatible with AWD models

Key Features:

• Adjustable rear sway bar kit
• Reduces body roll and improves overall handling balance
• 3-way adjustable stiffness (approximately 37–70% stiffer than stock)
• Constructed from high-strength aircraft-grade steel
• Powder-coated finish for corrosion resistance and long-term durability
• Designed and manufactured by STILLEN

Installation Notes:

• Direct bolt-on installation
• Includes required hardware
• Professional installation recommended for optimal handling setup

Technical Details:

• Part Number: 304352
• Manufacturer: STILLEN
• Position: Rear
• Adjustment: 3-way adjustable
• Finish: Powder-coated
• Category: Performance Suspension / Sway Bars